In the Hessian woods today I saw a recumbent where the rider was positioned very high; his entire body was higher than any of the wheels. In this position, he was at least as visible as an rider on an upright bicycle, and more visible that one on a ducking bicycle. Is such an "ultra high racer" (as opposed to ordinary high racer or low racer) available commercially or may I have been witnessing a custom built / modified bike?
Unfortunately I didn't manage to take a picture, recumbent cyclists are fast :-)