Hmm, a post I made a day or so ago somehow got thrown up toward the start of the thread, so I'll just reiterate what I asked earlier...
Can you recall at all which pathways Spook brought up with regards to clen usage? When he and Par start discussing metabolic pathways you gotta respect what they say, even if you can't necesarily decipher all of it ; )
I can only speak anecdotally, and don't have studies to back it up, but for myself I can certainly say that clen allows me to injest massive calories without any added fat gain, as I've used it in that regard a few times now. One thing I don't like it for is cutting without any androgens, as I find that I simply lose too much muscle this way.
I do recall a discussion on the CEM forum where they more or less determined that due to the massive beta recepter downregulation that clen wasn't that useful of a cutting tool, as during the weeks after it's use fatloss would slow to an absolute crawl. I wonder if that recepter downregulation would be as much of a hindrance in an environment of caloric excess though?