Hello, I have a 1999 Hoyt powertec, shooting carbon express terminator 6570's ( does this mean it is good for 65 to 70 pounds) that was what i was told, just confirming, I have these arrows cut at 28", and a 100 grain field point which was replaced by muzzy 100 gr. 3 blades but they hit the riser, so I bought 6 brand new NAP 100 grain expandables to stop that problem, I believe my arrow is a around 10 gpi arrow, just the regular terminator 6075, so if it was 10 grains, it would be 280 plus 100 for the tip so I'm at 380, without the insert, nock, and fletchings, which I don't know the weight but it comes from the factory with them, my question is will this setup be too light for a 60 pound bow, I mean without causing damage? is the 6 gpi im getting good enough, i believe its at 6.3, but I just don't want to be too light and make my bow pretty much like dry firing it