Was hoping to get the "Hun"...just missed out. I have the RedLine Kit on my 15 XM. Thankfully mine does not work as described and i feel it works well and rips hard. I do a lot of mixed riding, not all trees, not all open bowls and I find that this works well for me. I have installed my own charge tube (eliminated 3 bends and bout 15" of tube) as the one that came with the kit is for the stock hood and I am running a mountain fit hood. I have a mixed bag of clutching going on too and not running redline's turbo ramps. Am running his primary spring recommendation and pin weight. My own gearing and pulling 115km/hr track speed in a climb in 2 ft pf powder on a 174. works for me. The guys that have tried it have been impressed just as I have. The OP seems like he has an axe to grind with Dave and that is his prerogative but fortunately for me I don't have the same experience and have been happy with the set up. Dave was super helpful and actually answered the phone every time I called. You didn't like it and pulled the kit off an sold it, the purchaser seems happy with it, but the continued bashing is not holding much water anymore. Only my opinion, everyone has one, just, like an a$$hole right.