Originally posted by threeunder: Stu's is pretty accurate for me. I also find, though, that either carbons have a "sweet spot" that shows up about 8-10 lbs underspined or they are WAY more tolerant of being underspined than Stu gives them credit for.I can't prove it, but i've seen it happen enough to believe in it.In the end, though, go with what works for you.
Originally posted by Pete McMiller: I NEVER match stu's calculator unless I put in a personal form factor of around -10. I just tuned some new arrows - bare shafted perfectly and the only way it works on his calculator is with a form factor of -10. I have great arrow flight even with bare shafts out to 30 yds. Use Stu's calculator to get close and then fine tune yourself.