So I went out tonight and did the calibration at the meridian but realised I did it at the north end and not close to the pole. (clouds had rolled in and finished my night by the time I realised)
anyway attached is the calibration log / data. I'm assuming looking at it those 2 lines are meant to track back on exactly the same path which means I got problems.
However after doing the calibration and then just let it guide after the calibration the next image was the result. Before I was polar aligned mind you. (tbh that's better guiding than I was getting AFTER I was aligned previously

)
Anyway as mentioned above clouds stepped in and ruined my night before I could re calibrate or polar align. So will try again soon. but based on tonight's messing around I think a proper calibration and new alignment, along with some tinkering with balance of things, I might just end up where I need to be without opening the mount up.