I'm not sure to be honest, but if they actually schedule the structure on a list like they did M1T for example, then I imagine that's not cool to retain, grandfather or not. I personally tossed anything even remotely questionable, just because I don't want the drama! Be smart guys, if they make it illegal, then dump your stock. If you stock up on "gray" stuff now, that's just more money you have to toss if they end up banning it. That's why I said, it's pointless to stock up. It will either still be available and legit or it won't. Know what I mean?