Careful with supertest, that stuff is potent as f@#&... I couldn't walk after pinning and even went down to 0.25ml E2D but even then it hurt bad.
What are your objectives, current weight and BF?
If it's size you're after, I don't think you can go wrong with supersize or superbulk, they are potent but without the PIP of stest.... Just my 2c...
In order to be old and wise you must first be young and stupid.
Fuck sakes, I'm going to be a genius.