Hello
Finnkai and
BruceFinnkai, this must be so frustrating.

I cannot find any reference to any change in the reel sprocket used on Morrison Olympics, and
then on early Masport Olympics, and I can only identify one change - the move to a keyed sprocket
in the 1990s (?).
Surely, an engineering house should be able to, free-of-charge, put a thread gauge over the reel
and sprocket threads to identify the issue.
We have not come across this issue before.
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Jack