None is really better at maintaining gains after the cycle. That is a matter of how you eat, behave, train and run your PCT. Something you will probably see is additional “weight gain” from the Deca that you won’t see with the Boldenone. That “weight” gain however will be additional water, especially if you don’t manage your AI during your cycle. Boldenone will keep you tighter, drier and looking better than Deca, but you will get much more out of Deca from a size gains and strength perspective. You COULD get similar gains from Boldenone, but the amount you would take would be pretty cost prohibitive. Something around 1,000mg per week of Boldenone… not worth it.
The prime advantage of this product is the fact that Testosterone Cypionate can be injected once per week and it gives some very good gains in strength and size. I would bet that many careers testonon in bodybuilding and athletics were built with the long term use of this drug. I’ve used it at doses of 250-2,000 mg per week, and found that the best gains versus side effects are probably had somewhere below the 750 mg/week mark. Of course this is far below what many competitors in the upper ranks of bodybuilding use, but for the average (recreational) bodybuilder or athlete, the side effects above this dose do not constitute an acceptable trade off for the gains.