I've started off with a 2006 wr450f. My friend sold me his 2009 WR450F and the bike felt different. The 2009 felt more balanced than the 2006. So now I have the oppurtunity of purchasing a 2013 WR450F for a good price and can't decide if it's worth my money to get it. Anyone know if the ride and feel is going to be the same for the older wr450'S?