I have a 1958 Tandem Folbot Super folder. Original vinyl skin too! I have done about 50 trips in it since acquiring it a few years back. A few have been solo trips with a lot of gear up front. However, mostly I have done tandem paddling. It does take some coordinating and can be a little frustrating. Even with a less experienced partner, other boats have a hard time keeping up. The boat is fast, very stable, durable, and can haul 500 lbs. Two grown men would have a real struggle rolling this boat. I have just finished building a short shot. I am working on a design to replicate this boat as a non folder. I am probably in over my head but I will let you know how I progress.
John Cecil