Broke in my new .21 Tuned, did the heat cycle, now here comes the fun part, was trying to get it tuned, and ran into my first problem, when going to full throttle I get this bog (for lack of another name) the engines sounds like a deep "BOAAAAAAAAAAAAAA" then a couple of seconds later clears out, tried leaning the bottom, richening the bottom, leaning the top, richening the top and nothing....any ideas, I'm going back to stock settings, but I'm kind of lost on how to tune, I've read that you first set the LSN then the HSN so it just clears out, spoke with some other guys that run same engine and told me to tune like any other, first HSN then LSN.....any help much appreciated!!!!