Well got to try out the new mods on the scope last night on M20 and all seemed to work great no collimation issues this is a stack of 60 x 60 sec exposures with the ASI1600MC cooling -15 captured in Nebulosity 4 with a CLS filter also at the bottom towards the middle there is what I suspected is a Asteroid trail but have not had chance to see if there was one in the area or not and M5 which is a stack of 100 x 30s possibly should have re focused on this
cheers Pete