Hi all, I have one and am just getting to grips with it. In doing so - and it's probably quite obvious anyway - that the supplied 'polarscope' tube is not great. However, by carefully unhinging the tension spring it is possible to sandwich a thin metal plate around the locking nut in such a way as to mount a proper polarscope. You just need a plastic spacer ring to lock the plate in place around the driveshaft. This looks a bit like the polarscope mounting of another type of tracking mount [you know the one!] - actually I got the idea from that other mount - but if you can get hold of some 1/16" gauge - or similar - steel sheet and some 3mm thick PTFE or polyeythylene sheet [I used a food cutting board] - that is stiff enough to hold the polarscope, this mod or upgrade is a doddle to do. I am surprised Omegon never thought of it in the first place.