I honestly don't know what the 'rule of thumb' is on that. I guess I usually find more biters on the front side and peak when they really get turned on. Of course, if the wind gets too stiff, I pretty much fish wherever I can get the anchors to hold.

That full windshield grabs wind like a sailboat...
I may not be part of the 'brain trust' you were talking about, but I didn't see any of the smart ones answering so I thought I would take a crack at it...

Hope that helps...