Originally Posted by pawoSD

The adjustment is minor, loosen the locknut and turn the screw like half a turn clockwise and re-tighten the locknut, see how much of a difference it makes. On my car it was enough to smooth it out and allow it to idle without help in subzero temps. It will not affect the transmission, the bowden cable does that. My shifts/feeling during putting it into gear etc....are unchanged. The transmission will not notice a difference between an idle speed of 700ish and 800ish rpm. You'd probably need to go to about 1000-1100 rpm before it'd put extra strain on the torque converter....as thats around where the stall speed lies.

Benefits:

-way smoother in the car at idle at all times
-warms up faster if you go out and start it before you leave to go somewhere (car fully warm after less than 10 mins at 0F outside cold start)
-more off the line power (at least it seems that way)
-idles fine on its own when its extremely cold out
-sounds cooler.