Thanks. I think I'm gonna pull the trigger on the Vortex, but I'm out of town parts of three of the next four weeks so no hurry right now. Plus I'm _still_ waiting on the replacement fuel injector I ordered I don't know how long ago. Here's the thing I don't quite understand, maybe someone has seen this, or maybe an answer lived in our dear departed threadfest. If I do the 15 minute idle, then go for a ride, the jerkiness is very nearly gone. But after a couple of hours of riding, it comes back. It's not a heat thing as the problem persists through all subsequent rides until I redo the 15 minute thing. It's like it learns how to behave, but it can't remember the particulars very long. Strange.