The KME knife has a nylon ball with a hole in it so the stone carrier is supported 100% thru the entire range of motion, elminating and "wobble" off the intended degree setting. Others I've tried- Don't!
AKDan, Ron has shared that glass/auto body wet sandpaper trick with many of us.
Only thing I see that sounds different in your method vs. what he taught me and others is the part where you set the bevel on the coarse...
Ron's approach is to get it hair shaving sharp on the coarse, then polish the edge with the rest of the stones...
At least I think I got that right.. Should...He's drummed it into my thick German skull enough times!