I have always wondered on how long of break to wait in between rattling. I usually wait a little over a 1/2 an hour.......is this long enough or to long? Also what combination of calling does everyone use....I tend to either give 2 doe bleats and some different pitched grunts and then rattle and while rattling I also grunt......at the end of rattling I give a couple grunts and maybe just a longer one. Thanks!!!