So about joint scaling, working much better than before, but there's a new problem. Down to size small+ will load but the two different pieces of each joint will load skewed to each other. They still function correctly but the smaller they are the bigger the skew gets. This won't make the game crash but it's possible with more than light use. Small and small- seems to still break the game very quickly, sometimes though I can see the joints go limp right before breaking.
One other random issue I'm having, although it's not that important; when hitting ctrl+z in the editor to undo something it seams that every IR part is duplicated in the sequencer. These copies don't work but are just there as filler. The list fills up pretty quick, it's manageable but annoying.
Keep up the great work.