Bill,
Here in Chicagoland the waters so stained I can't imagine them being of
much use at all. Lake Mich on occasion, but it was also stained pretty good
most of the year. I don't know many places in the Midwest-upper Midwest
where they would really be of much benefit. Possible some places in Wisc an
Minn. but not around here for sure so I think water clarity would be a big
deal.

--
God Bless America

Josh The Bad Bear