mag 10 gains

I was wondering about this today while I set in class. I did the androsol cycle thing last year and gained 9 pounds in the first cycle and only like 3 during the second cycle 4 weeks later(I was following the same diet, training, etc) So with mag 10 I was wondering if you are going to gain most of your weight during that first cycle that you do. For anyone that has done more than one cycle of mag 10 how where the gains in the second and third cycle compared to the first one?

Also if you only do lets say 1 cycle instead of multiple cylces will this hurt the amount of LBM you hold from that first cycle?