I'm planning to beg and plead with @Beer can to sell me some WJG hatching eggs this spring to give them a try out here in our hostile desert. Knowing me, I'll be crossing them with my NN, but I'll allow them to remain pure for at least one summer to see how they handle the heat. I know we don't get quite as hot as you do down here in Pima county, but it'll be pretty close. If you don't make the plunge yourself, I'll be sure to give you feedback on my own experiences.
Maybe you could keep them pure enough for me to get some hatching eggs from you later?