Hi Dave,
The reason why I’m considering the 25mm is that I’ve ought a wheelset that is aero, so fitting a tyre that is not aero doesn’t sound like the greatest idea. Average speed is 30-40kmh normally, I weigh 80kg (system weight is around 90kg including bike), and I see lots of people mounting the 25mm for the aero benefit, so not sure what to get… considering the hassle to set up tubeless, I’d like to choose the right tyre width first time instead of changing and experimenting tyres several times.
I really like and appreciate your point of view on the 28mm, as I currently have conti 28mm clincher (on a completely different and cheap wheelset) and can see the benefit vs the 25mm