Here is something that worked for me on two 3-year-old Maryland gobblers this spring. While doing very light hen yelps and clucks on a glass on glass friction call, I would grab the gobbler tube and toss in one or maybe two gobbles. Thing is, I would cut the gobbles off real quick hoping to sound like a jakebird. Then I did one real quick aggressive gobbler purr, then back to light hen talk. Don't know if that's what brought the two longbeards in, but I know they came in fast and I put tags on them.