Here's an old hybrid-I think I remember hearing somewhere that Adrian Slack(the man) mentioned he didn't think this hybrid was worth a cultivar status-probably because of the weird shape. Bear in mind, when you breed and collect plants for as long as he did, you become more "selective" than the average CP enthusiast.
In any case, I still think this hybrid is spectacular! Here's a S. x umlauftiana grown by California Carnivores: