Wonderful news! And it's interesting that your uro doesn't think you need the continued maintenance BCG because you're doing so well. I don't think I've ever heard about BCG and the bladder "shrinking," though I know people do have strong reactions and can get irritation and infections. The maintenance protocol allows for greatly reduced concentrations of BCG when people suffer from strong side-effects. (I'm going to 1/3rd concentration myself this time.)
Small TA Grade 1, May-06; recur (2 tiny), same, June-08; TURBTs both times. BCG begun July-08, dosage to 1/3rd May-10, completed treatment December-11. All clear since 2008.