I'm gonna suggest you do a search on the forum.

And this has nothing to do with you.....but for some reason....this head can't be discussed (in this forum), strictly by people who have experience with them. For some reason it attracts detractors who've NEVER used it......like magnets.

How someone who's never used THIS mechanical head can hate it SO MUCH.....is beyond me.

Peace....and good luck. Shoot me a PM if you're interested in my take. I killed 8 deer with it, last season.