yeah it is really hard to find a supplier, If there even is one. The best I have found is a place in minnesota that sells Splake. Like many of my other posts, its more of a curiosity than anyting else (especially since my water temp tops out at 84 in july). I was mostly wondering if, during the trout season, I could get half a pound or so more of growth out of a mak than I could with a rainbow. I guess I can always dream.
-Scott
p.s. you hit the nail on the head about trying to stretch the limits. I bet if you told me that I could get like 2 pounds per year out of my bass (or something crazy like that), that I would probably ask you how to get 3.