Welcome back to the EVO family
@Wideload23 havent seen you for a few months posting.
To begin, this is the sub to ask your questions, there is no wrong way to ask on EVO, the EVO family is a no judgement zone.
For your question, it's very subjective at best. You're using 500mgs testosterone, but how is your body absorbing it or responding to it is very subjective case by base. Generally speaking, over 150-200mgs testosterone (real tested) would boost your E2 (estrogen) levels out of range or close to the top, and the higher you go the higher the estrogen leve.
If you're at 500mgs testosterone it's best to using aromasin right away, estrogen can be very dangerous when high.
But my answer is just general, like shooting a bow in the dark, unlikely to hit the target.
The real question
@Wideload23 is what is your cycle plan? what do you plan to use in total? how long? why? whats your history and stats? share more with the EVO family please