Originally Posted by fuji
From what i've read from hundreds of experienced users this is the consensus on what happens when you come off. The further you push yourself beyond what can be attained naturally the harder a time you will have keeping it when you're off.
Agreed for the most part. If you're 5'10" and 275 pounds of solid muscle on something, do expect to be able to hold it when you come off.
But if you're 5'10" and a solid 230 with the help of <1g/week, there's no reason why you shouldn't be able to keep most or all of your current mass less the bloat you lose if you keep up on your diet.
The main reason why a lot of guys shrink after they come off is because they don't eat as much when they're off (extra test in your system increases your appetite) and, less so, they don't train as hard (attributed a bit to slower recovery time but more so less intensity/aggressiveness).
Basically, you just need to be sensible. If you're on and holding 230 by eating 5k calories/day, then don't expect to come off and hold the same weight by eating less than what you were eating whilst on, even if you're not hungry.