What was your first cycle? I'd stick with your original plan, I know test/deca/dbol has a rep for being a good beginner/intermediate stack but I've no idea why, in terms of side effects it can be a real train wreck if you don't get everything exactly right in terms of ancillaries and a very strong PCT, nandrolone decanoate can shut you down long and hard (and give you nasty problems like lack of libido and a limp dick), NPP is a much better option IMO but I'd leave it till your third cycle so you can see how you get on with sust and dbol on this occassion...