Hi Jack,
I hope you don’t mind but I thought I’d ask what problem it is you are trying to solve.
I remember you were having issues with wavelength shift in your spectrograph. If this is the problem then I don’t think mirror flop in the telescope is likely to be the cause.
Of course if you are having trouble with shifting position of the star when you cross the meridian then that would be fixed by solving mirror flop.
Cheers,
Andy