[WingnutR32 (Sam)]

I usually can also, Peter. Just not sure why tonight is being different to previous nights..

I have never seen a CCD Drift align result with a bowed line which near on finished back where it started.

Edit: I have redone the drift align again and have confirmed that my polar alignment is good. So there is something else going wrong in my sidereal tracking perhaps that is causing terrible stars in 2-3 minute exposures.

Another edit to avoid double posting: I just had a brain fart / lightbulb moment... I have a really odd inkling that I may have forgotten to balance the scope when I put it back on the mount after changing the rubber vibration pads. This is going to be a strain on things if it is out, surely.