RE: maxima hunter arrows
I shoot a maxima 250, and it is the best arrow I have ever shot.
I robin hooded one from 10ft once (It was a bet) and got about 8 inches of penetration.
I robin hooded a GT XT hunter last weekend from 10 yards, and got 12 inches of penetration.
The maxima is, in my humble opinion, tougher than the Gt's.