Well I've done a lot of messing around and tweaking to try and eliminate the backlash. It's still not "good" so I'm going to get someone's help with it this weekend, but things are improving steadily and I'm starting to see the details in my captures that I'm seeing in other people's so I'm happy that I'm making progress.
Thanks for your input and suggestions - I still haven't tackled tilt yet (want to get the tracking sorted first) but I'm putting more attention on getting good calibration frames, and getting my guiding nice and tight.
Cheers all,
Ross
https://pbs.twimg.com/media/Et64b6BV...name=4096x4096