I'm also curious Chris, why not bloods? Also, and I may have mentioned this to you already, but one of my professors at KU, George Pisani, has done research showing that the canebrake isn't a true subspecies. Either way, two of the species that you say you'd like but won't ever work with (bloods and Crotalus horridus) are snakes that I have worked/will work with. So also why not a nice fat TR (timber)?