I can tell no difference between running 100LL and Mogas.

I sure could in my Continental A-65 Champ.
The engine seemed sluggish with mogas. It didn't seem to have as much
power.

I know you probably realize this, but your observation makes no
sense. There is no difference in "power" between avgas and mogas.

If there were, the FAA would never have approved mogas as an aviation
fuel in *any* aircraft.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"