RE: "newbie" prop question
I've never run a OK CUB, but 30% nitro fuel with castor oil could help. You might find that the CUB can put out more thrust with a different prop, like a 6x2, 5x3, 7x3, who knows except a CUB expert? There are still a few CUB runners out there.....Doug Galbreath sells specialty model supplies and he's listed under his name on the internet.