I simply cannot fathom the need for a mechanical when you're shooting a 43lb bow. I did, a few years back,kill a 6pointer 20yds broadside with an NAP Scorpion broadhead. A whoppin' 6 inches of penetration, 45lb bow. I'm sure we could play a bunch of "what if" scenarios were it, say, a Rage or a Rocket Steelhead I used instead. However,that was more than enough fair warning for me.