Hi, I purchased an Aftershock a few weeks ago and have been going through the break in process. Not too bad so far. I've run about 5 tanks and went through a new glow plug on its 4th tank. I started at 3 out on the Low Speed Needle and 3 out on the High Speed Needle (per the Aftershock instructions) and worked it from there with very small adjustments. Yours sounds a bit too rich, (does it smoke a lot?) but remember to make small adjustments (obviously beginning with the low speed setting by turning it clockwise in very small increments). After my second tank I was having a similar problem, but it gets better and better after every tank!
Chris