well im not sure how much u will keep, just make sure u do a good pct, if it is ur first cycle and u do 500mg/wk of test e for 10 weeks, say u gain 20 pounds, compared to doing ur first cycle at test e at 1000mg/wk for 10 weeks say u gain 34 pounds, it will be a LOT HARDER to keep tha gains, high dosages arent always better, im in my 3rd cycle and am still using 500mg/wk, im pondering my 4th cycle being test e 600mg/wk,deca 400mg/wk,winny not sure