Okay its not a 100% update yet I haven't tried the needle yet. I just got in the mail the other day that special needle mxa keeps suggesting along with a few other rags. The reason stock needle is causing a slightly to lean condition. I suspect the reason is now that I got this new needle has to deal with the taper. The stock needle right before it go's into the main has a sudden taper change. Its pretty normal for a needle as in it tapers very gardually till that point. The new needle I just got doesn't have this sudden change in taper its striaght taper all the way threw. My theory is cause of the sudden change in the tapper on the stock needle its setting into the main to deeply causing the slight lean ness its offering. The hype of the new needle is that it gets rid of this and the bike runs more crisply overall. The weather has been crappy here lately (snow) so I haven't gotten a chance to try it. I'm going to try it this weekend during my next ax race, not my ample idea for testing but i'll let ya know if I can detect any difference I'm thinking small gains here.