I ahve had several motocross bikes over the years....my current bike is a 2005 KX250 2 stroker.My last ride was a 97 KX250. I've recovered from a shoulder injury and ready to pick up another bike. I'm looking at a 2005 and 2006 KX250. Anyone else jumped from an older model to a newer (2005-2007) KX? What did you notice most?