“longer being faster thing”
Im finding longer more fun, not cos of speed, but greater control, therefore greater scope to make pretty shapes in the air, smash turns and generally look for any reason to leave the ground.
It’s counter-intuitive, but i found the same thing in BMX, something that fits and puts your body in a better position to control the bike, is going to make it more agile. This became most apparent on 360 hops, really short, twitchy bike was really easy to spin uncontrollably, easier to get a messy spin, on my longer more stable bike, harder to initially attain the spin, a lot easier to do it in a controlled, pleasant manner.
Maybe agility is the wrong word in this case, enhanced control?