Thank you all for the comments it does inspire me to work harder to get things as good as i can with the equipment that i have. Though if there is something that you see, please don't hold back I post up here for criticism even the finicky fine stuff that most would say "so what". Thats what makes people change for the better!
Thanks Rich. I'm with you 100% on the passive autocollimator.... the thing is a god send, and once you have it right (method) there is no doubt in your mind that you have 100% captured perfect collimation. It also covers all the errors. not just one of them!
Its funny that you say that the stars are perfect out to the corners, I have run the best subs though CCDInspector, and i still have a fair amount of curvature in my field as the MPCC is sitting "about" the right spot Now that my assignment hell has settled down in the next week or so I want to do the measurements accurately and space the MPCC at exactly 55mm from the sensor. Plus i have a few other tricks that im working on ! ahhh the love of a obsessive tinkerer.
Paul, thank you for the comments Im impressed by how the qhy9 handles itself, sure its not the high end of this chip set, but it does preform with such a large capacity for cooling the chip set, The only thing that im finding is if i drop the temp to -30 i get massive noise banding, which really kills the image. Ill look into that further though.
Thanks Trevor, I'm not fully back from the scholastic adventures
nearing the end though about 12 months of fravilities then my astro adventures will kick off properly!