Maybe I missed it, but why the hell are you wanting to pay a shitload more for Sust instead of just using Enan or Cyp?
Also, why 600 deca? If you can’t grow off 300-400, those extra 200 are just going to give you shitty side effects most likely.
I could be wrong, but I almost never see anyone pushing deca that high, and especially not the first time using it.