'05 Ally, 70lbs., 27"draw, 27.5" arrow, 100g tip. According to the selection chart, which one of these aluminums in the "S" (XX78?) would be the best choice? 2314, 2216, or 2215. Right now I shoot ACC 3-39s. Not sure if I used the selection chart correctly, was hoping one of the experts could give me a clue.

Thanks, John

Actually I think 2413s would be it. ???????????????

Yep. The 2413 would be perfect.

Is it me or is shaft selection fairly confusing? I googled arrow selection charts and I got a bunch but there were conflicting numbers on some of them. Some gave the 3 digit spine number and others gave the 4 digit number. Do both numbers address the same thing or are they for different parameters? Just wondering.