TweetNothing builds mass like test. I know you don't want to hear it, but it's true.
The Deca may help your joints while on. but not permenantly or anything like that.
Test is just as safe as Deca so long as you have the proper anti-E's available.
My advice:
Drop the deca completely and just do test. Say 500mg Enanthate for 10 weeks.
Save the Deca for your next cycle to stack with test..
IMO: A cycle should always have a testosterone base. That's your meat and potatoes...everything else is just gravy.