Hmm, I don't think I have too much paster (I put AS5 on it when I first opened up everything). I know this because when it intermittently worked before, the fans would run at their usual levels for the dashboard and at a higher rate for games. Basically the best way I can describe it; it's like when you have a game in and the fans are spinning really quickly, but as soon as you hit the eject button, the fans slow down to a slower pace... Except when I hit the eject button, the fan speed doesn't change -- it stays at the "game level" speed all the time.
If anything at all, it's actually helping my 360 run cooler all the time, I'm just curious why tinkering around with the X-Clamp screws would change the fan rate and make my 360 run again... oh well.

Your 360 is going to break at some point permanently.
That is what happened to one of my Xboxes.