The biopsy has confirmed TaG3, so I do have the choice of BCG or surgery. The doctor - a pleasant but young registrar - didn't have much information to add to what I'd already gleaned off the interent, but wouldn't let me decide there & then. At least he didn't try to sway me in either direction.
I have to back on July 12.
I can be grateful it's not worse and the sense of urgency has abated slightly…