The DecaVol has a two step conversion: 19-Norandrosterone, then to 19-Norandrostenedione, then to 19-Nortestosterone. It would have to be dosed high and even then the results would not be worth the money. It also has ATD in it which will further dry out your joints.
I would recommend running the Havoc @30mg per day for 30 days alone. If you are an experienced user of hormonal products the addition of Bold @1-1.2g per day for 8-10 weeks would be a good compliment.
As far as joint health, cissus has worked well for me.