Has anyone ever used deca 400mg/week successfully for cutting for a contest with prop/v/fina. The deca is not necessary is it. The prop will most likely keep my size while preventing less water retention. Right. My brother won the light heavy's at 5'8 188lbs. He used deca till 2 weeks out, v and parabolan and looked great. He dieted on 3200 calories a week.