Maintenance Update 1.0.5
Similar constraint issues that the breasts had when converting the rig where present in the shoulders as well. Coded in the addition of the new constraints to match the shoulder.L and shoulder.R control nodes. Shoulders should now deform correctly. Great work from community the community on this one, specifically @jogly for his screenshots and clarity sharing the details of the issue.
Aside from this patch, no other changes have been made to the code, feature set rigs, or usage.