I don't mean to keep bringing this up, but if these tags were pure fantasy, then why are so many repro companies selling them? Whether mine is fake or not is somewhat irrelavant to me at this point. I'm now just trying to figure out what these were for, or if they never existed at all.
Simply because many companies sell a badge like yours is no indicator that it's either original or a copy of a legitimate badge. There are thousands of so-called "SS pocket knives"/"Hitler presentation pocket knives" all over the place (I seem to run across one at least every other month in my prowls through junque stores/antique malls/flea markets) yet they're well-known fake/make-belive/fantasy pieces. As far as the vendors you've listed, much of what they offer for sale also indicates thaty have no idea what they're selling (ex. the SS EM buckle offered for sale as a "German Army Officer's Buckle" for £15.00 is not just mis-identified, but the price alone (details too) give it away as a bad fake.
With regards to your badge, aside from the obvious (i.e, collectors' input, known examples, etc...), the details are all wrong...poor quality, font, skull shape (what's with the chubby-baby cheeks??? (that's rhetorical, btw)), color, etc... You've been directed to post your photos at Wehrmacht Awards.com and the Militaria Collecting Forum (
http://www.wehrmacht-awards.com/forums/index.php and
http://www.militariacollecting.com/ )...two of the largest Third Reich collectors' fourms. Post there. They'll tell you the same thign (consider too, many of here at Tucos also post at both WAF and MCF...a lot of us collect more than just guns.

) Likewise, I've posted what a legitimate SS ID tag looks like, as well as a Gestapo warrant disk and yours matches neither. I'm sure if you googled "SS ID tag" or Gestapo warrant disk" you'd see other photos of legitmate ones.
I guess what many of us are trying to say is that regardless of the evidence posted...opinions and input from experienced collectors, photos, advice, etc... if you wish to continue in the belief that it's a legitimate piece, so be it; but that doesn't change the facts.
HTH