This is what happend to me this fall from a singal stand.I hit it the first week of oct. and called a dog in right before dark and got him.Went back 4 days later, another kill.I went 5 times in a row over 2 1/2 week period and killed every time. I kept telling myself I would keep going until nothing showed up.The 6th stand produced a double coming in to a hart decoy which I screwed up and got nothing.[Just when I think I'm getting good;how humbeling]Went a few days later and nothing showed. So I figured I better lay off a wnile.I found alot of new areas to hunt so it was 3 weeks before I went back. Last Sat. I called another in from the same stand.Thats 6 this year from the same tree.I must admit there is a high population in this area and I'm the only one calling there.I want to wait til mating season until I start howling, I think thats going to produce too.You can do as you as you see fit but I thought this might give you something to think about, it did me.By the way, I used the same call every time,crit'r call.Good luck.