Matt, The 479 is the WEB cam! (TYPO) The Megacycle cam with 254 deg.@ .040" is more like 250 @ .050" (also guessing) Must be too early yet in CA!
Ever notice that the WB all-around is just about a copy of the XR cam, and the GTT-WEB 450/451-WB Track are also very close to the HRC cam? Maybe Honda does know what runs best all along - or there are some cam grinders that don't want to put much effort into R&D of new grinds!