Which Saddle?

^^ Have you got them set up the same? (I've been setting mine up, and the difference between horizontal and a few degrees forward or back is ridiculous)

I've just got a Romin evo. Had an 8 year old Toupe on my fixed before, and really liked it, but having put the Romin on to test it (wasn't riding my road bike at the time, which is what it is for), and its ace. So much so that I'm probably just going to order another one.

I have/had an Arione on my road bike and whilst I really like the shape, I just don't find it comfortable on longer rides, compared to the Toupe, which I put down to the cut-out. Fingers crossed that the Romin should sort that out

Doing my best to get 'em set up the same... Will break out a spirit level (or worst case the app on my phone). Seat tube angles are different on both bikes, making fore/aft difficult to get perfect and like you say any difference from spot on is weird. Worth it when I get it right, I hope...