That might work Drobs.. I have the Johnny Stewart call.. You can buy the different chips to put in it.. Thats what my buddies used to call the grays in..
Just came in the mail today. It is the best sounding call I have and a great quality as well. Even came with a decal for the ride.
What awesome looking calls. Love the wood grain. Might have to look into one of those. My problem with mouth calls is they freeze up to often. I have been using electronic calls for the past four years, but I still carry plenty of mouth calls when ever I get out. Good luck with tagging a fox.