You won't regret running Test E (2x250mg a\week) I think. Only having to do the injection twice a week will also help to become comfortable with the whole thing. I've heard other ppl complaining about painfull encounters with Sust, beside it not beeing the preferred compound for lots of other reasons. I'm well into my 4th week of the above mentioned cycle and I'm up 15lbs so far...strength is coming on, no sides other than lower back-pumps

Sust is a mixture of 4 diffrent testosterones, which ofcourse has it advantages ..but this will be just like starting to stack right away. Why not start simple with a single ester compund like Enthate and see how you respond as the test levels slowly increase within you.