Just checked, I'm shooting nano pros and medallion pros in the 550 spine range which is 1 or 2 blocks too stiff on the new chart, though I have gotten them to tune relatively well.. (I'm definitely not about to rush out and change arrows till I kill most of the existing arrows ;-). )

I'm also not surprised as my bare shafts are showing stiff by about 6-9" at 30m..

My wife's medallion XR's are spot on though, (recently changed from carbon ones)


Tom

Nb I'm shooting 40# hex 6-H, with approx 42# on the fingers..

 

Just about spot on for recurve, still WAAAAAY off for compounds though.

 

I shoot MXRs and the new charts are accurate now..but that's because I recently moved up to limbs #4 heavier. Previous charts ran a size or two too stiff I think.

 

I can't take credit for all the changes, but I did spend quite a bit of time trying to help ensure they are accurate with actual data points from tuned setups I have personal experience with.

Just remember folks, these are SUGGESTED starting points. You may very well need to move up or down a box depending on your personal setup and shooting style.

Enjoy!

 

Still good, thanks though.