I called all around the east coast of Australia, and asked every Triumph dealer if I could use the E10 (10% Ethanol) that is available here. All suggested I stick to PREMIUM (your higher octane stuff) BUT,... the biggest Triumph dealer in Queensland said he had a memo sent to him from Hinkler detailing how the bikes run fine on the 18% blend used in Europe!
I tried E10, no real difference to me.
AI gone, freak, 45/145's, TBS, TOR's blah blah blah.
In the scheme of things... it will only cost me $3 more to travel 600km to brisbane on the best fuel I can get, so...