Well after much research, and definite results from another motorized bicycle owner I am taking the plunge, and switching one of my bikes over to the 100:1 mix. A friend that I had sold a Motorbike to was told by the major small engine shop in town they have had tremendous results from the Opti-2 100:1 mix.
Everytime we have gone riding together his bike, (that I built) just absolutly runs away from my fastest bike. They are both geared the same, and he out weighs me by 40 lbs.
I drained the tank and tried it out today on about a 15 mile ride. After about 10 miles it started running smoother and better. When I got home I pulled the spark plug and was amazed to see the black crud was gone off the top of the piston.
I will keep you posted on how the engine performs and lasts. Right now it has 320 miles on it. It all works out about the same as the Opti-2 is about twice as expensive, but I use half as much.