John,
I watched Eric Carl fly the FunSonic in the prototype 72" Ziroli Panther during both the Bardstown jet meet and Superman. I'd guess he logged over 3 flights per day. Probably more. Seems to have good power to turbine weight. The Panther was originally DF equipped then converted to turbine. The FunSonic seems the perfect match. Often he was at half throttle in flight even with an aircraft that size.
Sorry I don't know anything more about the engine than that.