^^ for bulking I would at the very least use NPP instead of deca. and even then I would suggest test/dbol stack.. that will bulk you bigtime and give you a raging appetite where you will be eating like a horse.
I'm on board with southerLd above, I've run deca... TWICE. and will never touch the stuff again! thankfully I ran a very aggressive PCT after screwing up twice and was able to make a full recovery.
yes deca is an awesome AAS, I wont deny that, but its just not necessary to run to accomplish your bulking goals.
if you put a gun to my head and said I had to run a 10 week bulker I would run sustanon 1-10 500mg/week, dbol 1-5 at 30mgED. a light amount of forma to combat estrogen. and I would book a reservation at the best buffet in town atleast 3X per week cause you are gonna be eating like crazy