Which model gets best MPG, 5 vs. 6 speed?

[736cc_imp]

I consistently avg an amazing 60+ MPG, and I check it every time I fill up. Includes a VERY fast weekend in New Hampshire where I was doing 100 mph blasts all day.
The Vesco fairing is aerodynamic and makes the mileage go up. Upper 50's sometimes. I always use cheap 87 octane as per Honda manual. I also have a 1 tooth bigger front sprocket.
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