When you meet your local doc, explain the protocol you've been on and why you feel it's been working well. If your labs are still within normal physiological ranges (<1000 say) then why change? If he/she is still resistant, offer to go on a lower dose for a trial period. You might well find that 100mg/wk is just as good for you. If not, tell your doc and they should bump you back up. So many of the TRT benefits are subjective, labs don't tell the whole story and good docs know this.
I've been on 200mg/wk myself and it's been great, but I'm toying with the idea of dropping the dose to 100mg and doing EOD Sub-Q injections to see if I can stop using adex. My E2 was at 46pg/ml before I started adex. If I can control it without, I will. The fewer drugs the better, while still achieving the goal.
As for your question about having extra T, it all depends on how it's dispensed. I get compounded T from my clinic and I get exactly 1ml/wk, so in my case no. Some guys get 1cc amps or vials, others get 10cc vials. Just depends on what your doc writes and what your pharmacy has in stock.