After reading all these posts on jetting I have to wonder where a guy draws the line and calls it good enough. I have went to standard YZ 450 jetting on my WR with all the free mods done and the cork out. I have not messed with the PAJ or MAJ. So in that regard if they are not the same as the YZ standard then I am not at exactly the same jetting. IMO my bike rips. It has no hesitation off idle. Excellant throttle response everywhere. I think it may be a little on the rich side for the hot weather we have had here lately (close to 100 today) but not to the point that it had any problems. So is there that much more to gain by continualy messing with the jetting or do I leave it and say it runs damn strong and thats good enough? Lowedog BTW I am the type of guy who can't stand to think that my bike is not running as best as it can even though it's good enough.