I am considering putting a weighted flywheel on my 426. I ride about a 50/50 mix of woods and mx riding. The newest issue of MX Action magazine did a article on Steahly weights for the 250f. They pointed out that the weighted flywheel would not fit behind a DSP carbon fiber cover, and they stated that it was for this reason that Ramsey's and Fonseca's bikes have stock ignition covers. I noticed that Tim Ferry's bike has a stock igniton cover also. Could he be running a weighted flywheel on the 426? I am considering the weight because I am under the impression that it will smooth my power delivery (better traction) and make my bike less prone to stalling. The weights that I have seen come in 10, 12, and 14oz sizes. I have no idea what size to get. I fear that too much weight will rob my bike of its snap. I also wonder if this modification could place too much stress on the crank. Steahly sells a complete weighted flywheel for $199. Could anyone give me some advice on this subject? I don't want to waist two bills.