RE: ???Best Mechanicals???
If you need the best get the HyperShock by AfterShock Archery
2 3/4 inch 125
2 inch 100
And you DO NOT NEED ALL THE KE to make them work!
They are awesome try them they kill game FAST and shoot the best!!
Your call all head work some work better!!
THE MORE YOU CUT THE FASTER THEY PILE UP!!
GO TO THE WEB SITE IT IS 1 AWESOME HEAD