I would stay with the muzzy's, personally, i use the new mx4's and shot a large doe last week, it broke 3 bones, didn't damage a blade, my tips don't unscrew, maybe use a tad bit of locktite or threadlocking compound on the threads and use the cheap wrench thing and be very carefull not to cut yourself, the crimson talons look pretty mean too though, i never tried them, but they look mean...lol