Would like to trade my Acratech Ultimate Ballhead for an another ballhead. It is with left rubber main knob and in excellent condition, with only a few minor scratches on the quick release plate. I can send/post pictures on request. The ballhead I'm looking for needs to have arca-swiss compatible quick release and mainly interested in the top brands: Kirk, Markins, RRS, etc. I'm located in EU, Hungary, so I would prefer to trade with someone in EU to minimize cost.