The two big JIRA items relating to the Second Life avatar are STORM-1716 and STORM-1800. 1716 was the Mesh Deformer. It is considered closed with the release of Fitted Mesh. 1800 is the item that deals with the avatar weighting and mesh layout, which many of us still consider a problem.
You can see the partial fix discussed in 1800 in the Singularity Viewer. It uses the adjusted weights recommended as an improvement to the existing avatar we see in the SL Viewer. I’ve added the weight to a couple of versions of the SL Viewer. It helps. But, the patch only affects what I see not others. You can add the fix to your viewer using the file found in the JIRA.


