I just got off the phone with the guy from [link=http://www.mecoa.com/rjl/rjl.htm]RJL Engines[/link]. They are out of stock and won't have any more for several weeks. Odds are I won't wait and will end up getting something else. I may try one later down the road, but the plane is built, ready to cover and will be in the air in the next week or so.

As I look at the other engines, several questions come to mind;

What's the difference between and engine that cost $45 and one that cost $110? The rpms aren't usually that much different, the bhp isn't that much different etc. There might be a slight increase, but overall is that little difference worth over 2x the money ?
As an example....

ie;