To be honest I dont feel any difference between 95oct with 10% ethanol mix or shell v-power other than my wallet gets a little lighter.
Its very common to use e85 in highly tuned cars here as you can have a much more aggressive ignition and boost, its not uncommon to pick up an extra 100-150 hp on a 6-700hp car, and the combustion chamber gets sooooo clean
I did a ethanol map for my bike many years ago, it ran fine but i had to stop at every gasstation i passed to refuel
If i had a choice though I probably would run on "clean" petrol too.
When I was in afghanistan last year and smelled the petrol they had and I remembered how the fuel smelled in the 1980...lead and highly polutant