RE: ASP 108
I agree with your comments Ed. If I remember right, I ran my 108s on 15x8 APC props and probably turned in the range of 8500 to 9000. One in a Lanier Laser 200, and one in a Goldberg Ultimate bipe, both under 10 lbs. Still have'em.
Glow engines are getting more scarce, although the used market for them is pretty good with so many guys going electric. As for me, they will have to "pry my glow engines from my dead, cold fingers"! I've had a good relationship with them since 1947 (ignition) and the next year when glow became available!
Clair