I did another shotgun to the bike a couple days ago. This time, I really got aggressive with the carb cleaner and air hose. Things cleared up nicely, the bike idles a lot smoother, and the stumble just off idle is gone. I checked tightness of the slipon Delkevics, they both were loose. Tightening them alleviated the popping on decel. I'm gonna keep dosing it with the Lucas cleaner, but I'm satisfied with how it's running now. I checked sync after the shotgun, it was almost perfect. The bike needs to be ridden more. I've been running it daily the past week, I'm thinking a few more tanks of treated gas, then just run hell out of it.