I'm still a little confused about the R100 setting. Is it just for ERR equipped engines? I have K-Line cruise engines, and Atlas cruise control engines that respond terribly to speed settings (sometimes my K-line F3 will accelerate when I turn the red knob to decelerate). They never respond to the speed control arrow buttons, but I don't even know if they are supposed to. Hopefully someone can help me out with the settings for these engines. Thanks.