I am a collector of information given by "Nuts&Bolts" here on Archery Talk. This may seem confusing at first, but this is an extremely simple method of tuning your bow and you will be surprised how quickly you get your bow tweaked in.
Good Luck and if you have more questions, search for posts by "Nuts&Bolts"... an AT legend...
thenon
Nuts&Bolts “Modified French Tuning”
Start with field points.
The idea is to get the arrow rest center shot as good as you can get it
(very close ball park),
and then complete your tuning with broadheads.
You can use paper tuning to figure out your arrow rest centershot.
You can use walk back tuning to figure out your centershot.
You can use French Tuning to figure out your centershot.
You can use the "eyeball" method, and get er close to figure out your centershot.
You can use what I call MODIFIED French Tuning to figure out your centershot.
Just shoot at a string with a weight on the end
at 3 feet or 6 feet, something close,
and very comfortable.
The goal is to keep adjusting your sight pin a tiny bit left
or a tiny bit right,
until your field point, splits the string in half.
Take your time and try to RELAX into a steady hold.
You WILL split the string in half, when you adjust your sight pin
a tiny bit left or right, e v e n t u a l l y.
Then,
pick a longer distance, whatever is available to you.
30 feet would be great.
20 feet works, if that's all you have.
Just any distance longer than your short distance.
Fire a single arrow, if you are in danger of a robin hood.
If you are not in danger of a robin hood, at your "longer distance",
then by all means,
shoot a 2 arrow or 3 arrow group........
Here is a QUOTE from axp117crow
here is my [axp117crow] FINISHED GROUP AT 10 yards
FINISHED GROUP AT 3yds
i [axp117crow]split the string once(most of the time the arrow just pushed it into the target). i have to get longer distances to make sure i'm perfectly dialed in, there may be some tiny adjustments still needed. but this works really good if you have limited space. also, it worked better for me than paper and walkback tuning
So, folks,
no need to be an expert shot.
Yup,
do MODIFIED FRENCH TUNING works best indoors.
Just a short, really short distance.
Just a longer, whatever available space you have, distance.
DETAILED instructions, below.
Here is another method,
especially when you don't have a lot of space.
I call it Modified French Tuning.
Only need 3 yards in front of the target,
and
only need 10 yards in front of the target.
Modified French Tuning.
Another way to do this,
is what I call "Modified French Tuning".
You only need 10 yards of space in front of the target to do this.
John Dudley talks about the French Tuning method on his website.
I have modified his instructions to make it simpler,
and my "short version" will help you
set the left to right position for your pins (windage),
and
help you set the left to right position of your arrow rest (centershot).
When you are done with my "short version" of French Tuning,
then your arrow will be firing straight,
at short, medium and long distances.
You will need to go to the practice range
to figure out how adjust the vertical spacing of your pins,
for 20 yds and 30 yds, etc.
You need 10 yards of space to do this.
Just remember...
at 3 yards,
adjust the sight pin to the left or to the right.
Keep adjusting the sight pin left or right,
until you can hit the string with the weight on the bottom,
where the string splits the x-ring down the middle.
Take your time,
and keep fine tuning, until the field point
nails the string right on top.
At 10 yards,
shoot a 3 arrow group. Size of the group is not important.
Just keep adjusting the arrow rest to the left or to the right,
until the hanging string splits your 3-arrow group in half.
Now, go back to 3 yards,
and double check that the field point still nails the hanging string
right on top of it. You might need to make
a tiny tiny adjustment.
Then, go back to 10 yards,
and double check the position of the arrow rest.
You get the idea.
Let's tackle this one step at a time.
First,
let's tackle the centershot for the arrow rest
and
find the correct windage (left-right adjustment) for the pins.
I have a simplified version of something called French Tuning.
Don't worry about what this method is called.
Very simple to do.
Hang a target face so the bullseye is at your shoulder height.
Put a nail at the top,
and hang a weighted string,
so the string splits the bullseye in half.
Now,
start at 9 feet. Yup, just 9 feet.
Fire a field point arrow.
If the field point arrow misses the string to the left,
then move all the pins to the left. (Adjust the entire sight housing).
If the field point arrow misses to the string to the right,
then move all the pins to the right.
The goal is to nail the string perfectly.
You want your field point arrow to be exactly below the center
of the bullseye.
Now,
go back to 10 yards.
Fire a 3 arrow group.
Find the center of the arrow group.
If the center of the arrow group is to the left of the string,
move the arrow rest to the right.
If the center of the arrow group is to the right of the string,
move the arrow rest to the left.
Goal is to have the hanging string split your arrow group in half.
Now,
go back to 9 feet.
Fire a field point arrow.
If the field point arrow does not exactly nail the hanging string,
then adjust all of your pins to the left or right,
until the arrow is dead center under the exact center of the bullseye.
Now,
go back to 10 yards.
Adjust the arrow rest in tiny amounts,
until the hanging string splits your 3 arrow group in half.
When you are done,
you can fire a field point arrow from 9 feet
and it will be exactly underneath the center of the bullseye.
Your 3 arrow group from 10 yards,
will also be split in half by the hanging string.
Now, your centershot (arrow rest)
and your windage (pins) will be perfect.
Comments on Paper tuning…
I never did understand the fascination with paper tuning.
Let's say we are talking about golf.
The swing coach says try this
and try that.
After some experimentation,
you start hitting hole in one
after hole in one
after hole in one.
Now,
would it make much sense
to check your swing plane angle
and club speed
to confirm if these two criteria are in spec?
Try the modified french tuning.
6 feet and 30 feet
or
6 feet and 20 feet
or
6 feet and 36 feet (whatever longer distance in convenient).
Then,
go out to the practice range
and shoot 60 yards.
You might, need a teeny tiny
adjustment to the arrow rest
to lock down the arrow group
and center it to the bullseye.
Modified french tuning
only helps you figure out
the horizontal adjustment
for the arrow rest
and
for the sight pin.
If you want to "super tune",
then we can experiment with front to rear
bow balance,
we can experiment
with creep tuning to adjust cam starting position
we can experiment
with d-loop position (affects cam timing)
(affects nock travel)
(affects group size).......
that's why in my writeup
of "modified" french tuning,
I say that moving the d-loop a tiny bit
higher or lower
could possibly shrink your groups...
but, then again,
so could taking 1 turn off both limb bolts...
but, then again,
so could adjusting the draw length ...short enough.
So,
paper tuning
will show you that the bow needs adjusting
AND at the same time,
can show you that you have a DL problem
(draw elbow out of alignment)
AND at the same time
show you that the limb bolts need 1 full turn off
AND at the same time
show you that you have a dropping the bow hand problem
AND at the same time
show you that you subconsciously grab the bow
AND at the same time
show you that you have too much side pressure on your face......
ad nausem....
so,
for someone as skilled as Tim Gillingham,
or a Dave Cousins....
paper tuning is a quick method to tweak the bow....
for the rest of use mere mortals,
a strange tear could be multiple problems
all at the same time, and it's not a procedure I recommend when helping folks via pm message
or posts of threads.
There are other methods that are empirical
and show less confusing information.