Its a steroid. I believe someone came up with this to invent a way to not come off totally. I think that if you are going to come off, come off and then recover and get ready to hit it again after your levels are back to normal. 

If you want to use something while you are off and recovering, maybe consider something that is not a steroid, effecting your HTPA. So maybe something like IGF-LR3. Or MK677. This stuff will give you a pump in the gym, keep you fuller and help to hold some size. But understand, the biggest factor is going to be getting your natural test level back up and making sure that nutrition is optimal