If you have no one to teach you in the feild then I would say a DVD may be a good choice for you, but I would try and get one from a good source. I personally have never grunted and knew that the grunt was the reason the deer came in. I often grunt when I rattle. The one thing that I think works great and can put several that I have taged to is the bleat cans. They work great! I have had several deer (mainly bucks) walking away from my direction only to hit the can and stop them and have them turn around and come right it, I have never done that with a grunt call. Also I think if ones not careful you can run calling into the ground and have a reverse effect. I try not to call, weather it be call or rattle no more then once every 30-45 minuets. Deer are wise and they can pattern your calls if your not carefull.