I bought the head porting CD’s sold on the site years ago. Kinda interesting hearing everyone’s thoughts and ideas.
Be got a bunch of those. I've listened to them for hours. There is a lot of good info in them. Some of it may be a bit dated, but they still have value. Every now and then, when I have a long drive, I pick out some I want to hear again and pop them in.
I also wrote a book he wrote and I liked it. Some stuff was redundant, but Don always told me if you learn one thing from something, it's worth the price.
I mostly agree with that.