Vince,
The link you posted was to a set of HB Threaded shocks. You can tell by looking at the upper spring retained.
As for the running of four buggy shocks, that would indeed be me. They are big bore 1/8 rear buggy shocks. They perform quite well.
I can get you more information, but I am certain that I posted a pretty good piece on it within this thread. If you have specific questions feel free to ask away. Be advised that I am away from home and it may take me a little to get back to you. PM me if you have detailed questions.