Hey Scott, This tree has come along fairly well. At this point I think you could be pruning more frequently. At least one or two more pruning since July would have had your ramification much further along. By waiting to prune in the Fall, many of the twigs have gotten larger in diameter and need to be cut off or reduced way back for taper reasons. I truly believe that if you would start pruning as new branches begin to extend (even before completely hardening off) you will begin to develop a plethora of fine twigging. Do you keep in a tray of water during the growing season...I find this really helps mine.