OK TE Saddle Gurus, I need your recommendations. I ride a Brooks Swallow on my road bike. My focus on the road is brevets and ultraraces, so I'm used to a lot of hours on the bike.

For a few reasons; saddle weight, replacement cost, not weatherproof, sharpish protruding metal parts, I don't want to use a Swallow for Cyclocross. Plus I think a Brooks is overkill for a 45 minute event.

A friend loaned me an old Specialized Ruby 143. (I did get measured at a Spec store and was told that's the width I need.) I liked the Ruby at first, but when I started riding it regularly, for relatively short rides, I began getting saddle sores. I tried my old Fizik Vitesse. It is an awful fit for me. I don't know how I rode it as long as I did. I also briefly tried a Specialized Phenom 143, and while I don't hate, it irritates the same areas as the Ruby.

Any recommendations on a lightweight plastic saddle with a similar fit to a Brooks Swallow?