Buckingtheodds.com, tony tebbes predator university, MFK game calls had a few short vids the most recent one is super graphic and worth a watch.
I like the MFK videos too! They are short & to the point! They provide instruction on the calls used & hunting action without all the extra time fill junk like riding around in the truck, sitting around at camp, eating, etc! Well worth the watch! You can look them up on youtube or check them out on Face Book at Mfk Game-Calls. All there vids are listed there!---Ben Jimmy