Ok, I have a 2002 AC1 with a swinger 4 way air shock. Since installing the air shock my AC1 climbs and rides great. Here is my question. Is there a big difference between the 2 bikes other then weight. Anyone have a chance to ride both and compare. My lbs will give me about $700-800 cdn on trade for my AC1 towards a Trance 2. What do you guys think. I've had the bike new since 2003.