Higher kv vs. taller gearing

[sleebus.jones]

Ah ok, I see now. Well, the 8XL will help, but only if you don't try to gear it up to the same speed. I'd try gearing for 30 or 35 and see how that works. Either way you go, you have to lower the work the motor has to do, so that means gearing lower and reducing your top speed.