Tweeti have used both,i will say more mass due to higher water retension,good strength gains,and your joints will thank you(especially during winny).
beware deca dick,i have expierienced it usually around week 9-11 of a cycle,so keep cialis and/or viagra just in case.
i like both,deca has given me personally the ego boost necessary on the scale and eq in my vascularity.next time round i am using both
cheers