People areally so quick to gripe about "dry air" when a TC convection cools somewhat. Some hurricanes do not shift gears like a motorbike, but more of a big rig. They shift up, speed up, let off the gas for a minute, slow down, shift and speed up faster. I could name them off a list no problem, Katrina, Wilma, Rita, etc and ect. They all would strengthen in steps.