Been running GB's primo ace for about 6 weeks now and had to re-up to keep it going. Pinning 100mg ED along with 350mg test per week and starting to see some good results. Physique is changing slowly but surely and I'm still getting some lean gains even in a calorie deficit. Will post a full review soon but wanted to get at least to the 8 wk mark before I did. Pip is noticeable but nothing debilitating, I've been mixing the injection with 50mg test prop and that def helps absorb some of the sting.