Scott,
The wrist pin was not replaced. The piston and liner, ring, and both circlips were. Of course the piston and liner are both scratched and are probably toast.
I will contact Hobby Services to see if there's an OS fix for this flaw. RM and I can't be the only unlucky souls. The clips need a deeper groove and a larger diameter I think. Circlips holding wrist pins in place are not new technology. If the clips are breaking up, hydrogen embrittlement could be the culprit.
anyway, I just installed a new gt33 in the Griffin and hopefully 3 times a charm.
Maybe the edge of the circlip groove had rounded off a bit?? Just a thought.