I am looking at a DeRosa Primato which was originally sold out of Germany and it has an unusual fork and I was wondering if anyone has any experience with this type of fork. The fork dropouts are DeRosa. The frame is Columbus EL-OS and the fork has a unicrown structure with a lugged sleeve. Anyone ever seen one of these before on a Primato (I've seen one piece unicrown forks on later model Primatos) and, more importantly, has anyone ever ridden one of these before and how does it perform? Thanks for any info!