When I gap shoot, I use the target to set my gap. So as an example I have a 24" gap at 20y. I find a point on the target 24" low and execute my shot. I have heard about gapping at the bow, allowing the archer to set a fraction of an inch, measured at the bow, to accomplish the same gap. I have tried this a little, but it seems unnatural for me. One technique I have heard of is to use the width of arrow as a unit of measurement, stacking up to three arrows widths below the target to set gaps.
For those of you who gap at the bow, what techniques are you employing?
The method I use is called "string walking". It such an accurate way of shooting that the NFAA made a ruling that if the top finger doesn't make contact with the under side of the arrow they put you in the limited sighted division.
To shoot this way, first you have to shoot with all 3 fingers under the arrow (also called the Apache draw). (Shooting with split fingers is called Mediterranean) Next you need to come to full draw at your regular anchor point. At 20-30yds hold the tip of your arrow on the spot you want to hit and shoot. Shoot this way and vary the distance to the target until you find the distance that lets you hit your spot by holding "point on".
Now, to hit your spot if the distance is closer you will hold the bow string with the top of your top finger about 1/4" allow the arrow. Draw your bow to your preferred anchor point and release.
Because you kept your anchor point at the same place but raised the arrow nock up above your finger you will hit lower on the target similar to changing the rear sight of a rifle. By experimenting at different distances and adjusting the amount of "gap" between your finger and the bottom of the arrow you can figure out how much gap is needed at any estimated distance. Bone up on your distance judging. This is essential for accurate shooting.
Note: your "point on" distance will vary from person to person depending on where their anchor is located.
This system works well for distances from "point on" down to 5-10yds. Farther than "point on" is achieved by varying the arrow tip gap above your desired point of impact.
Practice practice practice!
If shooting 3 under seems weird you'll get used to it quickly. Two benefits of shooting 3 under is you don't tend to drag the arrow off the shelf when you draw the string because of no string pinch, and believe it or not but drawing the bow back seems easier with your 3 fingers being together.
With the arrow nock being closer to your eye it kinda like bore sighting down the barrel of a gun.
Long winded but I hope this helps!
Good luck!
