Hey littlefrog,
Sorry i pushed you over the edge. Am working on the next part of my article, your advise will be welcome as I'm first time AOS contributor. Maybe a culture sheet?
Regards to your question about variety, because you have winter, my advise for now......... get hybrids...( hybrid vigor). Give me another couple of years breeding and I'll give you Michigan-tolerant hybrids. Haha..
Cheers..