Boy that's tough.

As you know Super Tigre want's 10% glow fuel

Gasoline is a better lubricant than Alcohol so 6% might be okay.
That's twice the oil of gas engines.

I'd like to hear from others before I try it.
I have to make the Carb adapter before I can try it anyway.

Any idea what temperature your Moki is running? And what prop are your using?

I could monitor the exhaust temp, to be safe.