Test/primo ratio and AI effect of primo

[UNX]

After cruising a few months on 150 mg test E, I started a cutting cycle adding 600 mg primo/wk. The 5th week I took blood work and my E2 was low (from 54 pg/ml on cruising dose to <11,8 pg/ml).
So I double my test dose to 300 mg, but I know some people need to run primo 1:1. 600 mg/wk test seems a lot to me for a cutting cycle, I prefer to use high doses only for bulking.
What's your test/primo ratio and how it treats your E2?

 

[BBiceps]

My first run with Primo I did 400/400 Test/Primo, it worked great but next time I will do 400/600 Test/Primo.

I would raise your Test to 400, or (if you’re set on 300 Test) lower your Primo to 400. If you have quality Primo you’ll get results from 400, I wouldn’t go lower than that though.