I have shot NAP shockwave and just some cheapies from Wally World (Eastman Outfitters i think) Surprisingly I liked the wal-mart ones the best. The thing is when I killed my first deer with a bow at age 12 I was pulling around 40lbs and using Thunderheads. The arrow blew clean threw without even slowing down and did the same for my next 2 deer, the bad thing is I had to spend time to set up for those broadheads. Now I have taken my last 3 deer with mechanicals and not one single passthrough, but i can strap them on and they fly identical to my field point.