One important consideration with the Nap Spitfire is this mechanical is not for the lower draw length archers. When you have momentum to burn they work out exceptionally well based on 15 years experience with them. Ill take the 125 grain over the 100 grain offering any day. Only problem is the 100 grain offering seems to be the most commonly available.spitfires were among the first mechanicals to hit the market back in the 90's, and the design has not changed. They are solidly built.
I would agree, 500 gr is a good weight for the maxx at any draw length. I have 28" draw shoot 70lb. Shot a doe with a maxx on a 390 grain arrow and although i got a pass through was not pleased with the performance. I upped my arrow weight up to 493 grains and they perform much better.One important consideration with the Nap Spitfire is this mechanical is not for the lower draw length archers. When you have momentum to burn they work out exceptionally well based on 15 years experience with them. Ill take the 125 grain over the 100 grain offering any day. Only problem is the 100 grain offering seems to be the most commonly available.
500 grain total arrow weight was recommended to me for this broadhead design 15 years ago. the longer draw archers may get by with a bit less & shorter draw archers will do well to make 500 grains the minimum. They a bit more energy to deploy & the larger cut diameter calls for more inertia as well.
When your whole setup is right they work great.