Hi Marty,
Can't say it's scale or fast....but my Wren 44 turboprop powered Das Kero Stik rocks!
Check the Stik flying at our latest ANZAC jet meet....
http://www.youtube.com/watch?v=oGNxyW2teC0
The airframe is the Bud Nosen 101" Das Ugly Stik built from a laser cut part kit and the wren 44 now has around 6 flights and god knows how many demo starts and so far it's been absolutely flawless. Starts every time, runs like a clock and sounds fantastic with the solo 3 blade 22x10 variable (static) pitch prop.
The turboprop is destined for a 134" span Fletcher FU24 ag aircraft.
Hope all is well your side of the tassy!
Cheers........Rene