They are all good. I have about 80% of what is available and I have learned a lot from each one. Some times you pick up something new when you watch them a year later. I have yet to find one that covers it all. If you are going to build more than one gun, if you have a notion you want to really take this up as a hobby, think of it as an investment. I have accumulated a great library of reference material, books, DVD's, websites, all invaluable. Also, the members of the ALR are invaluable. So many have contributed to the tutorials. Great people who could have kept it to themselves, but went out of their way to share their knowledge and contribute to others.