I'm entering the game after 25 plus years of street riding and an MSF instructor.My off-road experience is limited but I've handled bikes that could do 200 mph so handling power is not a problem but I realize dirt is a different game. I had narrowed it down to the WR450 but due to all the Woodruff key problems I'm also considering the DRZ400 or its twin the KLX400, My first choice is the WR but I don't want to purchase something that has problems before it spins a wheel. Could I get some input as to the advantages and disadvantages of both bikes. My riding will be logging roads, ATV trails and some single track through the woods no deserts here. Also is the Yamaha fix for the woodruff key a proper fix that sits well with WR450 owners? OK guys direct me to the proper bike. Oh I'm 6' 200lbs. so either bike should have lots of power and suspension for me.