i am looking for someone that knows how to tune a duck call to get a really quiet low end for field hunting? I hunted with a guy who had a DR-85 that he sanded down the reed to have a really soft sounding low end when working ducks in tight. I know if they are in tight you otta be shooting but this call is also deadly over water to give the birds a little more Subtlety than they are a custome to. I have not found one out of the box so I reaching out for those guys who have reworked their calls by sanding reeds ect. I have tried and just can not get it dialed in.