So, for on cycle do I need to run any thing like n2guard or an AI with Primo and Test E or since I'll be running the Test E at a lower dose do I even need to worry about it? My last cycle of PHs was SD, Halo, Epi and I had some signs of gyno which scared the shit out of me, cause I've had to of my buddies get gyno and have fucked up surgeries to get the tissue out. As always thanks for the help!
Unless you're taking orals I wouldn't say that you need N2Guard. Its main function is liver support but it also has good properties for other cycle support needs, so if you have the cash it would be a good addition.
An AI is a must for aromatizable test cycles in my opinion. Even at low doses aromatization is possible, so it never hurts to add one in and I would say it always helps.