I would also like to vouch for the FLM head. I had one of these for a couple years right after they first came out. Rock solid head with friction control. VERY precise handling. I had the Centerball 38FT which is a little smaller than the 58 but still mighty considering its size and weight. I eventually traded it in for the lure and mystique of the Arca B1. The Arca was a good head but I really dont see what the hype is all about. The friction-lock design drove me so insane I only kept it a few months before getting rid of the damn thing. Now I recently picked up a Novoflex Magicball and love it, but had I not found it at such a steal I would have been looking for another FLM.
-Ray