don't know the answer to your question but you should check out NNLX on the pinkies. One of the few pinkies that is legit. Good luck. Don't own any MDR currently, but did a while back. Sorry I can't add to MDR that much, but NNLX is in bed with Battelle, EPA and DOD which assumes legitimacy. Priced right to move, upstart with some serious potential.