later cycle less potent?

[Golden_Muscle]

hey guys, say a guy did his first cycle which was sust at 500mg/wk for 8 weeks and he gained 25lbs which was great. Then 6 months later he did the same cycle but bumped the dose up to 750mg/wk for 8 weeks and gained roughly the same ammount of weight.

Now my question is, what if he does a third cycle 6 months later, but lowers the doseage back to 500mg/wk for 8 weeks. What will his gains most likely be like? Half the weight gain? slight weight gain, or no weight gain? Thanks, GM.