Super Unleaded fuel

Hi All
I thought I would post this for any comments you might have ref the use of Super unleaded fuel.
I filled up the other day with super unleaded, RON97 instead of the usual unleaded RON95. The bike is now running much better, smoother round the town and it would appear that I am getting better fuel consumption too.
I know the Super unleaded is more expensive but it is looking like I will be getting a far better return to the tank with nearly 10-15 miles more. The upside too is that the bike seems to be running much better, take off etc is better, idling smoother and generally better all round.
Has anybody else tried the fuel or am I just imagining these improvements to the bike.
Mr Blobby

[Admin] I moved it to "General" for you.