The key is really not how much you are taking. Nor is it the rate with which you are seeing changes. They key is how much you actually have in you. Make sure the blood test measures your total testosterone level AND your free testosterone level (which is the functional amount your body has available for use). And make sure the test is taken at the "right" time in the cycle for measuring (standard is the trough - so right before you are due to inject again).
I think it is fair to go in to the appointment with:
- a list of changes you have had
- a list of changes you have not had
- a time frame in which these changes are supposed to be happening
- the expectation that they will be looking at your testosterone levels to see if they are hitting the average male range, for both total and free (bio available) testosterone
However, the key is really...are your T levels too high, too low, or just right. If your T levels are hitting the middle of the standard male range, then your rate of change is likely as good as its gonna be. Increasing your dose could actually increase aromatase, leave you with MORE estrogen, and hinder the rate of changes.
I'd want to see that the dr. has a reasonable sense of what the male range you're targeting SHOULD be and is willing to adjust you to aim for that. But I would NOT go in expecting a dosage increase just because some people are taking more. It could actually be counter-productive.
As for the passing thing, while it does suck, the reality is that this is very common for young transmen as they get older. Passing is all about context. It is easier to pass when people do not have to make judgments about your age/job/situation that might peg you as younger male/older female in their mind. The older you get without having more masculinization, the more people will default to thinking you are female. The timing may be annoying (now that you're on T, you'd expect to pass more), but I don't think it's related to being on T, and the fact that it is frustrating won't make your T changes happen any faster than your body can handle.