Has anyone used the Johnny Stewart digital game caller? I was thinking of trying a game caller this year and am trying not to spend too much $ to start (staying away from the Foxpro for now). I've read the threads on here about DIY digital callers and may give it a try. But I have a gift certificate to Cabelas to burn and thought about using it on a caller--don't want to waste it on junk though. Anyone have success with the lower budget callers?