RE: South Dakota question
Was out at Ditch Creek last weekend - put up the tent after we scraped 4 inches of snow off the ground. Had a tom gobble real close to the tent at 5:30 friday morning - never got to see him and didnt see another bird until 3 pm that afternoon. Ended up shooting a jake about 6 or so that day. Hope your weather is better than ours - 28 or so degrees Thursday nite, high of 45 Friday and cold friday nite (left at 9 and it was about the same, looking to get colder.)
Good luck to all going out!