I agree with smallfry you should still take the supplement on off days this way your not off and on the supplement. i made this mistake and got nowhere with my training.. if you really want to see results keep on the cycle till it is done..
For products like MassFX to work, you need the actives to build up in your system and maintain it there. This will be tough to do if the cycle is constantly interrupted by days of non-usage. Also keep in mind that it is the time outside the gym, where muscle is being built. The sustained boost in testosterone not only helps in tthe recovery, but helps put on those slabs of meat.
