yes I did shortened Wii U Roy's bandana. I did this because PM Roy didn't have a bone to rig the bandana to and using the cape bone didn't result in something good looking.
I know I can add him a bone and make it work but my idea here is to not touch the bones and fitmotion.pac file of a character so they stay compatible with PM's next version as much as possible. That way, I only need to update my mod when they touch the bones, which doesn't happen too often.
But seeing the render of PM's new alternate costume for Roy (the one in your avatar), it seem he will probably get a bandana bone in the next version so I will probably put back his long bandana in the update to make my mod work in PM 4.0 or whatever they will call it. we'll see when it get released.
You are pretty much explaining why there is no "low poly" Wii version of my mods yet. Lowering the poly count is not hard, it's the fact that it's destroying the rigging the problem. and rigging is long.
making a low poly version should be considered a project on it's own and right now, I prefer focusing on bringing new mod than making tons of version of the same mod.
Also, I think porting the 3DS model for Wii Users is a better, easier and less time consuming option then lowering the polycounts of Wii U models.