262lbs vs 180lbs...1500 mgs for 12 weeks is a way stronger cycle. What did you run before? A gram a week should be plenty. The extra 500mgs would probably just be wasted. You can only grow so fast. Alot of people on here are going to tell you that is way to much even. But speaking from 1st had experience 1000 is way stronger than 500mgs a week. I never went higher cause the results were already insane and like I said you can only grow so fast. Keep in mind I was 262lbs when I was running a gram.