ewest,
I did not work on the wisc fish project but it looks like an excellent tool. I've worked on many SeaGrant projects over the years and they usually are of the highest caliber.
Someone had mentioned triploid saugeyes (can't seem to find it now). Some years back we developed a protocol for triploid saugeyes and they performed very well. Sterile, fast growing, a little touchy to produce (but not rocket science) the problem was if you wanted 100% certified triploids you had to test every fish (just like triploid grass carp). So the testing gets a little expensive since you might be stocking thousands of saugeye rather than 10-20 grass carp.