A couple of months ago we found a product that some what helps with this problem. A company called
Yellow Submarine through their branch called Hobby base make ball sockets for Gundam models. These come in different sizes.
Though none of these match the ball sockets on Cy girl the 6mm are pretty close.
Now one warning. Once you replace the
sockets that figure will not be able to use normal Cy girl or Cool girl feet or bootfeet again. You will have to replace the
balls on any feet you decide to use for this figure.
On another note. These sockets will work well on replaceing any joint in any 1/6th figure. We're
working on replacing some of the body joints in an Obitsu 27cm figure with these joints.
The one problem with this replacement project is getting the ball sockets. The only place we've
been able to find them is Hobby link Japan. Though HLJ is a great place to do business it would be nice to have a place here
in the U.S. toget them. If you like this idea and would like to have these ball sockets easier toget a hold of please contact
your favorite retailers and put the push on them toget the U.S. wholesaler of Yellow Submarine to start carrying these great
custom parts kits.