My brother and I have a dynojet kit and the JD jet kit. From what I understand the JD needles are preferable and the jets are more in the usable range. It would be nice if we could find some good settings so we can use both the JD needles. I understand the SM carb runs a bit leaner. Would we maybe use the leaner red needle on the S and the blue needle on the SM ? Our two bikes; '09 drz 400 s w/ 3x3 mod and FMF full exhaust '06 drz 400 sm w/ 3x3 mod and stock exhaust (w/ dirt wheels & tires) mostly riding just above sea level (Pacific Northwest) in between 60-80F weather (would be nice if it got warmer this summer) ... We've already bought the longer mixture screws and float-bowl screws from the TT store. Thanks for the help !