I purchased 4x SKF 608 2RSH bearings for the worms. Hopefully, they will do the job.
Had heard the large bearings were best cleaned up rather than replaced. You hear stories of swarf and misplaced paint in EQ6 bearings, so a good clean may well be needed. I’m certain I have some lithium grease around here somewhere.
The PE for the mount has always been rather noisy with the occasional big unpredictable spike which meant 10 minute exposures often had elongated stars. Normally 5mins is sufficient, but it would be nice to have the option of 10 minutes for narrow band filtered images.