Thanks so much rossb, just the type of feedback I was hoping for. The Kuzma line of arms were confusing initially, but I believe I'm understanding their offerings now. There are four 12" arms, which all sit above the Stogi, but below, the 4-Point. First, there is the Stogi S12, in both standard and VTA (Stogi S12 VTA) versions. Then, it goes to Ref series for the Stogi REF 313... Again, also available in VTA version. My understanding is VTA versions can fit on tables that don't necessarily have provision for 12" arms. Then of course, the Non-VTA versions would need the full 12" (or so) from armband to platter. I'm by no means an expert, but I believe that to be the general idea. rossb, I assume that you have Ref 313 arm. Is yours VTA version? Just to be clear, it is my understanding that Non-VTA versions do indeed allow VTA adjustment by means of loosening/tightening a set screw.