Ok, revisiting this thread with some updates, and a challenge!

Earlier in June, I spent over a week with SmithMicro, who did all they could to help me test and resolve the issue, but we weren't able to do it. It seems to be an issue specifically with the Generation 4 figures (happens to M4 too), which is what I want to make the hair for.

I've got really nice ideas for this hair, got photo sources made and everything is set, but this issue still persists. One option is to make each "piece" thinner, that way they would probably just slide around the bump, but it wouldn't be a great solution, especially for animation. 

If I can finish the hair, it will be available completely free for the community. I'm making it because I'd like nice, flowing -long- hair that doesn't take 3 hours to pose with handles, or with the really long calculation times in the cloth room.  I am sure there are others who would enjoy it too, if it turns out well..  So is anyone out there interested/willing to help out testing or troubleshooting, figuring out a workaround?  If you are, just lemme know and I will send some test props! It'd be cool to see if we could make some really good dynamic cloth hairs for the Poser community.