I seen this this thread and read the two b-head choices.... it's funny but even the guys that are anti-mech can't find anything negative to say about the Rocket Steelhead series! Their performance is simply incredible and speaks for itself. I honestly don't think there has been many penetration tests that they haven't won... and this is competing head to head with ALL b-heads, both fixed and mech! I've never seen anything like them and I've tested (killed deer, not playing with foam and wood and other mediums that don't matter) dozens of different b-heads. They have out shot every head I've ever used and this is including Muzzy, Thunderhead, RM Ti-100's, etc, etc. I'll put them against ANYTHING when it comes to anchoring monster deer. I've zipped 'em through dozens of whitetails and some of these have weighed over 300# andEVERY single animal has been a total pass-thru and EVERY animal has gone down within 60 yards!