I just wanted to say a few things about different friction calls. I have five calls Mr Parker made and six of his strikers. the first thing is i am darn glad i have those strikers. over the past couple of weeks i have played each call with each striker. Without a question of a doubt they dont play the same. furthernore each of his calls has what i call the sweet spot, you have to play them a bit to find it, when you do mark it on the call some way so you can frind it in the field. i put a small mark with a pen on the out side of the call. you will find different strikers have different tones. use different strikers to sound like more then one bird. i use them in conjunction with my mouth call and a box call. i have narrowed it down to three calls to take with me and four strikers. Have a great season and good luck to all.