Those combinations sound logical, I already have that weedeater mounted on a test stand I will try the 15% methanol, 5% acetone and 50:1 gas/oil mix ratio with 92 octane fuel mix (doesn't the 92 octane already contains 10% ethanol?).
I think that on the last issue of Model Airplanes News at very end there was an article about a transatlantic flight with camper stove gas as the fuel used for the entire journey, they manifested that the camper fuel is more power efficient and it is requiered less of it to do the job of methanol.
What do you guys think of this; I am gong to try replacing camper gas for methanol also and I will set a table for the diferent mixtures indicating the results for rpms and the props used.
I will keep you posted on the results.