I agree with amusedtodeath, start out with a nice cut like prime or wagyu. Also, half a turn may be too much for the kk. I can get there on about a quarter of a turn while using a cyberQ. On that one, it has a display for fan speed. You don't want it running at 0% or 100%; that means it is getting too much or not enough air.
In a worse case scenario, make the BBQ sauce to brisket ratio > 3:1