So about three monthes ago i sold my yz400f and within two days i had bought a 2002 426. Now im thinking of moving on to a 450. I have heard that my bike has great power and the 450 is a little more mellow. Im probably looking at a 2003 450 in my price range so how will it compare with my 2002 426? Also, how noticble is the 4 spd compared to my 5 spd? I ride about 50/50 trails and track.