I'm using exclusively Super in my V4SP, and so far it's only been Shell.
I was running the Hypermotard 1100 on Super as well, but that was from Tesco.
The last time I filled the 748S was with whatever unleaded they had during the fuel crisis last year!
I really don't do a whole load of miles so I'm happy to pay the little bit extra.
Being a bit more scientific, I checked today's prices (31st Jan 2022) with the RAC:
https://www.rac.co.uk/drive/advice/fuel-watch/ Regular unleaded: 146.53
Super Unleaded: 158.71
So you're looking at an extra 12p-ish per litre for Super over Regular.
Given my V4SP tank is 17 litres, that costs an extra 12p x 17l = £2.04 per tank
Only you can decide if it's worth spending that much extra
