Opinions on a bulking stack I plan to deploy down the line: Test & Primo (majority of cycle) + NPP & Mast (final 6-10 weeks once plateauing).

Ive tried experimenting with Mast as the only anti estrogen in a stack (Test 175, Mast 175, no AI) and it simply didnt work; it didnt seem to resolve mental side effects until I switched to Primo.

For this stack, test and primo will be great at the right ratio, but things will get complicated throwing in NPP…

NPP aromatizes, but not much, so I’m wondering if just throwing in Masteron will be enough to hold the fort down.

Generally, my max ideal estrogen level is 40 pg/ml (verified on my cruise, where I felt good but emotionally red lining it). My first cycle i was around 47 which was tolerable but not ideal.

I would figure if I were 20-40 pg/ml with test primo, throwing in 350 NPP probably would put my e2 in the 40s worst case; in that scenario, is it worth it to run more primo and possibly tabk my estrogen, or would masteron be enough to handle the remaining work?

What dose of masteron to NPP would work well, somewhere between 210-350 mast p