Poor decsion on your Test. Sust250 is not the right choice if you only want to run 500mg per week. It is not a beginners Testosterone. Get some Test Enanthate (weekly, but more preferably bi-weekly) or Test Cypionate (bi-weekly).

Personally Eq does shit at 300mg per week - especially for only 8 weeks. Deca would be a better alternative. Or up the Equipoise dose. But you never mentioned your age, weight, bodyfat or any personal stats for that matter - so it's hard to judge a correct dose.