Wait...
...
Lets clarify a couple things...
First...Deca cannot be fast....its decanate.
Second... "Deca" is a slang term used when referring to Nandrolone Decanate.
Third...if you are referring to what I think you are referring to...you mean Nandrolone Phynlpropionate or NPP for short.
As far as what to do? Take the advice of my high school football coach and "keep it simple, stupid".
Novice aas use should consist of test e or c 4, 5, or 600mg with maybe nandro decanate 4 or 500mg 12 to 14 weeks...pushing it you can add dbol...
THATS ALL!
BN