CeeGee, of course it wasn't set up right. After three flights, adjusting the idle a little after each flight, he had it idling just fine. The point was that it was idling great the last time he flew it, but it apparently it changed while it set on the shelf. My TT 46 Pro also set since the last time we went to his clubs float fly, but I didn't have to touch anything except to tweek the high needle two clicks as it was running a little rich on the first flight. I haven't touched the idle needle on the Pro 46 since it went into the Mariner two years ago. As for the TT being obviously cheaper, I have had a lot of OSs over the years, starting in the late 60s, and my Pro 46 has as good a finish as any OS I have owned, and with eight years of running on it now, has out lasted most of the ones I have owned. Given how it has preformed, I would have gladly payed as much for it as I would have for an OS. The way I look at it, the TT is priced the way engines in this preformance catagory should be priced, which makes the OS 46 overpriced.