I had the B5M (both rear and mid) when they first came out. I much prefer my Serpents (currently have two MM and one RM). Had a couple of BMAX-2's, still have a BMAX-4 (shelf queen now, replaced by the Serpent SRX4). Have the YZ4 (about half assembled). Had numerous others (original 22, B4.2, TeamC Etc.). So far I keep going back to the Serpents, but the 22 3.0 is very good; but my last race I had a ball cup pop off in the first minute of the main (and that has NEVER happened with my Serpents).