Here is a link to the original thread in O-27:
I note that we are talking about JLC GG1s, not "Legacy" GG1s. I will try to change the title.
Dean Brasseur says that the JLC mold was modified for the "Legacy" and that is why there will be no more castings. That may put this problem in an entirely new light. Suppose the Legacy casting actually fits? I will ask.