I read the MXA article and they raved about the 06 YZ 450. I agree, I bought one, its a great bike and light years better than their previous 450's. However, the raise the bar 10 MM idea, is that really necessary for someone 5'10"? Has someone in that height range actually made the change and did it do any good? Remember, placebo effects (fake treatments or the belief that a change has got to be better) do affect people's actual ratings and judgements of a particular device or modification. With that in mind, who has changed the height and did you think it helped or wasnt really anoticeable change?