Ok, just read through it. It's all still right, one thing I've come to realize since which I didn't connect in the book:
Paul Hausser was put in charge of the training of the SS-VT in 1936 (I put that in there) during the big buildup, but what I didn't have was the connection to the SS Gew conversion rifles. The earliest I have on my list are from 1936, most about 7/36. This would mean that once the SS got serious about building up the SS-VT they initiated the rifle conversion program. Prior to that many just used Standard-Modell rifles or Gew.98 rifles. It's items like this that help you collect certain genres - study the organizations that used these weapons and learn the basics at least. I see so many that want to collect SS yet have never cracked a book open about the SS organization. It helps.
Second, I no longer personally feel that the SS did the majority of the conversion work in their own shops, in the book I eluded to the possibility that the rifles were probably converted by gunsmiths in the Suhl region. Some could have been done in the Berlin area by Gunsmiths, but I suspect the bulk were done in shops in Suhl. Proofing was done at Suhl I believe. So my current stance leans to commercial conversion. No documentation, but the rifles were sent back to the depots for inspection (where the skulls were applied).
I didn't cover it in this book, but I believe the "Lazy S" skull is for Sachsenhausen camp, and the "Gull Wing" is Münich. These were the 2 main depots - at that time the Dachau camp was in its infancy, so the M for Münich was much more of a fit for that. At the time I wasn't confident on this but as time wears on I feel more sure. Its still just a guess, but better than most of the idiotic theories I've heard.