it's tough to say if u should use the deca bc you don't know how u'll respond to it...but from what I've been told u should be fine...i've also seen ppl use anadrol precontest to blunt appetite and keep strength
i don't think its anything a low sodium diet and a diuretic wont fix if u bloat a bit from the deca
here is a Q&A with Dave Palumbo
"The Ultimate Precontest Stack for a Competitive Bodybuilder
Dave, what is the ultimate "STACK" for a precontest, dieting, bodybuilder? Please include dosages.
Given the current available anabolics (and starting from a point at around 8-10 weeks out), I would have to say that the following would be an ideal anabolic combination:
1000mg Sustanon per week (necessary to maintain base of muscle mass)
200mg Primobolan per week (great on low calorie diets)
50mg Winstrol every other day (hardening agent)
400mg Deca per week (keeps the joints feeling good)
50mg Anadrol per day (keeps the strength elevated, meanwhile, the hunger-blunting effect is welcome)
2-4 IU GH per day (fat burner and muscle preserver)
2-4 clenbuterol per day (fat burner and strength increaser)"