I got a reply from Spectrum, and it wasn't quite what I expected. I had
mentioned in my original message that my interest was in putting two single
rotor Mazda engines on the plane. Unfortunately, they seem to be very
anti-experimental, and it was suggested that I "find some other design to
mess with...". Silly me, I thought it would be a perfect design to test
alternative engines. Needless to say, they won't be getting any of my
business.

Cheers,
Rusty
13B Mazda power RV-3B flying
Single rotor Mazda powered Kolb Slingshot in progress (got rid of the 912S)