Bumping this in case anyone is having similar ops.
I rode for a gentle hour on day 5 after the op, a bit more from day 7, and managed a flat (ish) Mesh 200 on day 16 (motivation improved by RRTY).
That all went ok. Hoping to do something similar after 2nd op which happened yesterday.
Very delighted by the operations and the skills and care of the people doing them.