Have not shot at all, I mean zero, like these are my very first shots in 10 years, likely more......using the 3Rivers calculator I came up with 67.7 to 66.6 dynamic spine of bow to arrow yielding a nice arrow setup for a dozen Carbon Express Heritage 250 I had squirreled away forever. I am using 200gr up front and 24gr rear DIY lumenock and arrow is about 30-1/8" OAL. I think we are on right out of the gate perhaps a smidge nock high.....#3 was my initial shot, you see the nock go left and led bobber unit go right, and arrow dead straight. I guess Fletch tite doesn't quite hold them in them as I recalled....and I had way more hair when I started this sport!
Arrow Tune 1 (https://vimeo.com/1164867723?share=copy&fl=sv&fe=ci)
Arrow Tune 2 (https://vimeo.com/1164867705?share=copy&fl=sv&fe=ci)
Arrow Tune 3 (https://vimeo.com/1164867666?share=copy&fl=sv&fe=ci%22)
Maybe a bit nock high?