Some superb advice in this thread. Things i did not even consider (having to stop whole cycle and not just stopping the problem compound in the face of sides etc)
I have a trustworthy/reputable source, and i am considering it for my next cycle.
I've run test before, but have never run mast or tren, but am enjoying reading about them being synergistic, and well, the good feedback about both of these compounds speaks for itself.