250, my first cycle was high doses of test e, i am now doing 250 a week of sust and the gains are a lot better. its seems i get better results with low doses, and so did a few people i know
First cycle was 500 mg sust and 400 mg deca. Great beginner stack. You can use one or both and still get nice results. Guess it depends on your risk tolerance
sust is good for a first cycle. 500mg/week is good. shoot 250mg on mondays and 250mg on thursdays. Your lean, so you should see your gains rather easily. I would go 10 weeks though.
Just make sure you have all your ancillaries in check. I did 500mg. Sust/wk 10wks. for my first cycle, neglected to use Arimidex during the cycle and blew up like Mr. Pillsbury. Oh, and don't forget PCT ancillaries.