Use it anyway.
If you want to do it right, do it right, if you want to listen to stories and wing it, be our guest.
Tren in no way affects the conversion of the test your injecting into estrogen.
500mg/week is not a level where EXCESSIVE aromatization will occur for most users, but there is NO reason these days not to run AI's, ever, for anyone.
Everytime you use a aromatizing steroid at a non-replacement level dosage you run an AI, even AT a replacement level dosage you should use a small dose of AI for control purposes.
Recommend tren at 300-350mg/week on a first cycle with it, 200 will have a MARKED effect, but slightly higher dosing will provide significantly more benefit with a limited increase in sides at the dose....most of the time.
Either way start at 350, if its unbearable, drop it back slowly till you can run with it.
I recommend Tren Ace for this purpose, injected everyday, gives VERY stable blood levels which seems to help with alot of the sides.
Longer esters injected everyday would perform in the same way, but then you defeat the purpose of running a longer ester in the first place and might as well take advantage of the fast clearance of the shorter ester for PCT purposes, and not to mention it will kick faster, providing results sooner without a front load.
You will need a dopamine agonist.
If someone tells you the dosage is too low to worry about, or that you just need it "on hand", they are wrong, simply as that.
Run Caber or prami at a low dosage the whole cycle and for a week or so into the PCT before SLOWLY tapering off.
There is a lot more things you should be doing, post you entire cycle plan, PCT plans, etc, injection schedule, etc.