@jlp27 my history is very similar to yours, except I’m 80. In the midst of my third maintenance BCG treatment series. I was determined too to do everything I can to prevent a reoccurrence except that my side effects care more substantial. It takes two to three days for me to recover from frequent urgent urinations and I get flu like symptoms and lethargy. Recover well before my next weekly treatment but it’s not pleasant. My doc agreed to lower dose to 1/3 normal treatment to see if it helps with the side effects. After next week I will have had 12 treatments with three clear cystoscopes. I might call it quits after this series and opt for regular cystoscopes. Also it appears that multi parameter MRIs might be as good or better than cystoscopy for detecting reoccurrence.