Hi All - First post here. I have been bitten by the four-stroke bug. I currently ride a 2003 KTM 250 EXC 2-stroke, which is a really hard bike to find fault with. But I am ready to try a four-stroke. Without much thought, I nearly bought a 450EXC, then paused to checkout the blue thumpers. I must say that in the showroom the WR egos suit me better. Could someone familiar with both orange and blue thumpers please compare and contrast them regarding durability, ease of maintenance, suitability for tight single track and ability to meet a 96dba noise limit while in performance trim. Also, does the WR have separate sumps like the CRF450 engine? I'm 6 foot 2, 230lbs, ride tight Michigan single track and will likely enter my first enduro later this season. Thanks. BTW - Great site.