compression is at 150 tested with a guage. i can deal with the surging somewhat just trying to get used to it but i want to get that 1/4 throttle response cleared up and stop running choppy and studdery but im afraid of going leaner than a 55 on pilot jet, with that jet i get the fastest idle at 1.5 turns out on air screw. jetting this bike is a real pain thats why ive been studying on plug color and how to read one correctly thats where the mixing ring is supposed to be at the base of porcilian and brown not black but if i go by that then i would be at a 160main,52pilot with needle in the #2 clip posisition and air screw 1.5-2.0 that is crazy lean to me. but someone said that it doesnt matter if the whole porcilian is white as long as there is a 2 millimeter brown mix ring at the base. has any body jetted their bike this way?