So last week I pulled both of those brass plugs out of my throttle bodies, they were dirty, I cleaned them, and cleaned the holes too. Put em back in and turned em out 1 turn each, idle was a tad low, I ended up going 1.5 turns each to get a hair above 1KRPM. I also noticed the vibration had been pretty noticeable above 4K RPM, so I then cracked the right side cable lock nut loose, and adjusted by "ear" and "feel" at 3KRPMs, I got it where it was really smooth sounding and tightened it up. Rode it around and it felt REALLY good and smooth. But, I ordered a carb mate just to do it right. It came today. I put it on after warming the bike up, and at the lowest sensitivity, it showed green light at idle, I swung the dial to the most sensitive, and it went to a blinking amber light 1 position off center, so a quick little nudge on the right side brass plug got it right on the money at the highest sensitivity. I left it at that sensitivity and wound the bike up to 3KRPMs, and umm... it was dead on. what can I say? Is setting it by ear/feel a viable method? On another note, after the first adjust by ear, it was super smooth well into the 5-6K range, and where it felt buzzy at 4K it now feels like an electric motor it is so smooth.