Also, if not the Mogul Logic DVD is there any others that are recommended?
I have the Mogul Logic VHS which I was told got converted over to DVD. The youtube clips are summaries of techniques explained in the VHS/DVD. In the later, Chuck does a great job of breaking down the techs and showing its revelance in mogul skiing (meaning not skiing around the bumps but mogul skiing). IMO, he does a great job in breaking down in general, look at his web site clips on the Fin's tech and Mayer's stack position. You will get this level of detail in his DVD.
If you want to improve your mogul skiing, I think getting lessons or camps from mogul coaches is best, but Chuck's DVD can help. It will certainly help in filtering out the self promotion or marketing factors that seems so prevalent in the net.