Heading out again this evening with my puddle jumper. The plan is to hit 3 well known grounds on a few lakes. I expect the temps to have risen in at least 2 spots by about 4-5 degrees. Anything tossing us over the 60 degree mark should equate to a pre-spawn run of males.
If anyone else out there has some recorded water temps for northern MN lakes, please post them so I can save on gas 
God I love living up here.
"If you really want something in this life you have to work for it. Now quiet, they're about to announce the lottery numbers."