Today while changing outfits on my 06C, I had to take the hands off to get her shirt on, and they took way more effort than what it should have. I tried to get them back on for a few seconds, after I had her shirt on, and couldn't do it.
Then looked at the hole where the ball goes into the hand, and it's way too small compared to the size of the ball. I understand that's supposed to keep it on, but since it's hard plastic and doesn't flex, that's not going to work without boiling then the same way I had to do the feet. I wasn't trying to go to all that trouble, so I just used a pair of hands from one of my 10s, on which the hole is noticeably bigger, and it went on with only the slight, expected effort.
It's a shame to read that TBLeague has switched the design on their dolls' hands, especially since it seems like most of y'all collect those. I hope that's not something that causes a loss of fun on your doll changing and posing!