I don't use calls during archery season, but starting in November, I have my Primos can call and Primos buck roar handy. I actually grunted a buck off of a doe on New Year's eve last year and killed him at 15 yds. I know it doesn't always work for mature deer, but my heart gets to racing just as hard to have a young buck come running in grunting. I missed the biggest deer I have ever seen while hunting after I did a few series of bleats on that can call on opening day of rifle 2 yrs ago. He circled in behind me and I had a narrow window to shoot threw. I guess I hit a sapling because I never found any blood. But as far as calling goes, it's like anything else. Sometimes it works, sometimes it doesn't.