Do it in the most powerful one (less time spent climbing). T67 260 m then the bulldog then the RF 6 100 hp (don't even try a 160M- too slow).
Someone said the firefly doesnt spin? Its great at flicking and teaching incipient spins. I never had any issue getting one to spin or (touch wood) getting them to come out of a spin.
Why did they not make the bulldog handle like the Pup. Then it would be the best. But because they didn't beagle is right the chipmunk wins.