this has always buggered me up, i think the hardest part for me was figuring things like. Ok throttle position, so if i am doing 120 kmph in 5th at 4krpm i am likley only using less then 1/3rd throttle or so, my issue with tunign has always been that 1/4 to 3/4 throttle part, i mean the pilot and air/fuel as well as the main at WOT is somewhat easier to figure out. The rest? man you could chase that for a while.