I think sumas aren't being made much because mahogany seems to be one of the more uncommon genes. I talked to Brian at BHB reptiles at an expo, and he told me that sumas don't seem to have duckbilling or kinking from what he was seeing. I plan to pick up another mahogany or two at some point. That gene has serious potential. Has anyone here looked at a black potion? Or a mahogany leopard? Incredible combos, have a look. Mahogany is also nice with cinnamon or black pastel. :)