Uncomfortable road saddle, how to choose a saddle for my riding? I have a selle royale laser saddle. Its pretty uncomfortable but not bad for pedalling. I would like to change my city road bike saddle. Does anyone have recommendations, and rules of thumb for choosing saddles?

My specific use case is for short and medium trips in the city. For long trips I have a Brooks Champion Flyer. I was using an mtb saddle. A specialized body geometry saddle on my road bike, but I found that its too wide &amp; need a saddle designed for the road bike. Its a vintage road bike so the saddle position and pedalling style compared to newer road bikes might be different (its a 1950s H.R. Bates).
The general rules of thumb seem to be:


Softer saddles for shorter rides, harder ones for longer rides
Width to match your sit bones plus about 2cm.
A large portion of personal preference


Source: Sheldon Brown.

There's some more detailed analysis here.