You should check out Elknuts CD's and videos. Has everything you need for every season of elk hunting and how to call under many situations.
http://www.stores.elknut.com/
Elk Nut has some good stuff, but he doesn't have that CD. I had a copy of it and listened to it over and over. I've used Jim's early season technique he calls "Silent Calling". It's worked for me and my hunting buddy. I'll ask my hunting buddy if he still has the CD and will see if I can't track down a copy of it for you.