Not really if you take a systematic thought out approach to it. Basically what I think that is, is to start out with only Test, then wait for high E2 symptoms. If you start with an AI, it can be tough to tell high vs low E2 symptoms. If you start with only Test, you know your E2 symptoms are going to be high E2.
From there if symptoms occur, start very low with AI. I’d start with like 0.25 mg twice a week of adex. If symptoms go away, STAY THERE. Wait about 4 weeks and get blood work to see what your TT, FT and E2 is at a minimum.
You don’t need to target a number for E2, but understanding where you feel good vs a dose of Test is a good data point.
You could use Nolva like you are asking though. I’d probably start lower than 10 mg ED. More like 10 mg every 3 days or EOD to start. Adjust from there.
With ancillaries, I think good advice is start low, very low, and only go up if needed. Be patient, as it can take a bit to stabilize. A sign of too much AI is feeling good to soon. If it’s that day or the next that symptoms go away, that dose is probably too high after a few weeks.