Hi, Yes that was the first thing I did. Installed cups nicely until I tried to just nip them tight (not hard) and I could feel the threads slip. I obviously didn't force the issue and just removed them. Now with LBS to get thread on shell chased out and facing done as this is cheapest next option. If the shell has gone oval then this fix will not work.

Frame builder seemed quite convinced about ovalisation. Not from some super human effort just years of use.