ORIGINAL: pukeleeland
What bugs me about this whole thing is that I used a chart from GoldTip to pick these arrows. The chart shows that if I shoot a 100 grain tip, use a 29" arrow, with a draw weight of 65-70 lbs, I should use an arrow in Group 5 which includes CAA 500. If I use a draw weight of 70-75 lbs, Group 5 arrows should also work. According to the chart, I shouldn't have to use a stiffer spined arrow until I go to 30" with the current draw weight, or I go to 75-80 lbs with a 29" arrow. I guess the only thing thatmatters now is what I see on the target. It's too bad I spent so much money on carbon/aluminum arrows.
Chart only gets you close. You have lots of tools at your disposal after you use a chart. You cut 1" increments to stiffen, you can change heads from 75gr up, you can make slight adjustments to the rest. Or you can drop poundage, which is my prefered method.