I've thinking about doing some changes to my 07 wr450f suspension. The first idea was to send out the forks to get resprung/revalved. The second idea was to do a 2007 yz450f fork swap, which is supposed to be a direct bolt-on. Which brings me to my next dilemma: should it re-spring the stock rear shock on the wr, or should I also do a rear shock swap? How bad is the rear shock on the wr compared to the yz rear shock?