Hi Bojan,
Not a silly question at all. Done some drift aligning last night to find my elevation was too high. So that wouldn`t help at all. I try to guide on a star in the field I am imaging but sometimes the guidestar is a few degrees away from the target.. On my flexure tests but, I did guide on a star in the middle of the image and still see the trailing uniform over the image..But thanks for the suggestion and I am better polar aligned!...
ROB, I agree with you, I think its something to do with the mirror cell.
Next big cloudout I might remove it and rebuild it and see if I have fixed it.
Nothing else has made a difference except when I work on the miror cell.
By the way I only have a few pics of my setup. Still a work in progress....pier is just about done then a nice shed next..etc..but heres a pic from last month on a hot summers evening getting it all ready..
Cheers....