Ok I remember posting this question a long time ago and never have gotten a straight answer, just theories. I also have been looking in the archiuves and find nothing. Now does anyone know what the hell are the rpm spikes that occure as you remove your foot from the gas to up shift? It's kind of anoying. I've tried to modify my timing as to when I step off the gas and disengage the clutch but it's not practicle.