You’ve probably already seen this post Loose belts during calibration - #39 by Andith but I thought it might be worth linking in context of your tilt issues…
I switched to (top down) BL → TR → TL → BR at the New Year and things massively improved with Maslow cutting clean lines nearer its edges. I’m not sure how pragmatic the change in arm order would be for you with the ear removals, that is, if the additional space would be available in a useful space…