12 weeks 600mg/week would be nice, 800mg would be better. With 600mg/week take twice a week, 3cc per shot, I do Mon and Thurs shots. 23g is smallest I go with Shering Primo cause their oil is VERY thick, it's slow even thru a 23g.
3cc's is nothing, but max for many muscle groups. I like to stack it with var myself, it great rock hard gains, never stacked with anything else, up for suggestion for what to throw in this next 1000mg primo stack
eq and primo would be a nice stack.. YOu could probably do 2 ccs per shot instead if 3 ccs is pretty rough. I only inject in my delts and the most i ever injected in one shot was 2 1/2 ccs.. wasn't painful, but that's a lot of oil..
but then again... if you had primo enthanate (like i do ) you wouldn't have to inject e0d...and at 200mgs per ml.. gawd i love bragging...