I've done several searches and can't seam to find an awser to this question. Maybe I'm just not holding my tongue right?

So, what size tank do you guys prefer on a 75cc engine?

I don't usually fly more than 8--10 minutes. Mostly IMAC type flying, but I do intend to try some 3D with this plane. A 20oz tank fits real nice--but I'm afraid it's a bit small. If I have to go to a larger tank--it'll have to get moved from the CG up into the engine box area. [:'(]

I know my other planes with G-62 and 24oz tanks will run 30 minutes EASY if I'm just loafing around and doing basic IMAC areobatics. Just for reference.

Thanks