lead poisoner, I mix it up grunt rattle ,grunt while rattling try not to do it the same all the time! If I'm going to stay in the same place I rattle about every 30 minutes for a minute or so.If I'm moving around a lot I rattle about 5 minutes wait 5 and rattle again staying put for about 15 ,inutes then moving on! I have far more dry runs than productive ones.for one the bucks have to be able to hear you and for another they have to be in the mood to come!