I have seen a boat or two pulling boards each time I have been to Mille Lacs this fall.
I see so much rookie boating out there on the big pond, with decent numbers of boats, I personally wouldn’t pull boards in the locations I have been fishing. I have a hard enough time avoiding the jittery, weaving fleet with no boards out.
I do use boards at night all the time on Woman Lake. Some nights they outproduce regular lines by quite a bit, but other nights, they don’t seem to offer any advantage at all. I usually use them if I am fishing three guys and always use them if I am fishing four. I hate tangled lines when trolling cranks.