Check out http://forums.steroid.com/showthread.php?t=148950

I ordered the same combo and decided to use only the clen for my current cutting, due to the mildly catabolic nature of T3. I'll hold that T3 for a cycle, when I know that my anabolic state will be high.

That's just an opinion, but be sure to check out Hookers threads on both clen and T3. Very informative.

BTW... AR-R's clen kicks a$$!