Yes, "the piece of metal that clamps the OTA onto the mount was rotated".
I did this because on HEQ5, one needs to rotate the OTA 90 degrees to horizontal position to be able to use the polar scope, otherwise it's blocked.
I rotated the saddle so that I could use the polar scope when the OTA was pointing to the NCP.
It's just the mechanics. I rotated the saddle and rotated the mount's axis back so that the scope was still facing the NCP.

Of course, now I don't use the polar scope (but I did before).

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