I recently sold the R.E. Horn tape to another fellow. It is a very informative viewing by a knowledgeable craftsman. As far as presentation, Ron's a fine craftsman. Actually, I found it very helpful.
As far as the gunbuilding tapes, they are actually kit building tapes, using two of Jim Chambers kit guns. They are very good for a beginner starting out with a kit. I recently sold them also.
I have met and spoken with Ron at the CLA, etc., and he is very forthcoming with his vast knowledge of the trades.
Later
I.C.