If your continuing to gain muscle off that low dose, I'd bet you'd gain without the juice.
Thats not much at all.
Frankly I think all the hormonal bouncing for that level would be counterproductive myself.
If I was able to get gains off that low dose, I'd use it for short periods @ end of strength peaking
PL Bench/ Squat/ Dead training run to bust thru to new PR's. The communist block countries used this
cheating protocol.
If you get some boost off that, I'm not going to tell you run it up, but most guys wont gain on something like that repeatedly.
I'm not clear how long your staying "OFF" between cycles. Are your gaining much strength and size?
What is your Goals? Size, strength, etc ?