Dog Health Questions: Has anyone tryed "dog training secrets" by Don sullivan?

I want to know if i should buy this DVD. I have a male dog aggressive APBT (5 years old) who also is difficult on walks. and a brand new GSD puppy (5 months) I enjoy seeing different technics. i wanted to know if anyone else has seen don Sullivan's training methods and if its worth the money to buy the DVDs.

Dog Training Man's Best Friend

Recommended Answer:
Never seen it. I prefer to train my dog's by the way I want to train them.
-- I could tell you how to train your dog to walk with you on a leash though I have taught a couple people before. Here's a question I have answered before about dog walking : http://answers.yahoo.com/question/index;…

- But I really don't know if you mean aggressive when you take him on walks or just don't wanna go..

Choosing Between Dog Training Schools and Animal Behavior Specialists