Frankly don't know enough about MDXG to have the conviction to short it or to buy it for that matter. However from what I do know I conclude that Osiris has a superior lineup of products.
Having favorites doesn't convey the necessity of a religious war. Regrets for you and your self imposed binary world. And if you make lots of money in MDXG bravo for you. Maybe the funds will aid in opening your view of the world. Maybe not.
Not sure where your loser friends are. If the option was a nice looking road bike or a fugly (on one of your posts) lime gold 911 - I would take the road bike. No offense as I am a Porsche fan as well, but most of the members of PCA would say that 911 screams "discount" sort of like the 928 debacle so I hope you enjoy the color and you feel like you got "a good deal".
Regarding OSIR and I'm not sure who on this Board you are emailing with, but its up 9.42% currently but on less than average volume. Not an overwhelmingly enthusiastic sign. Be careful what your reading from your tea leaves. That stock was in the mid-20's and I wrote back in Aug-Sept time that I think its a long way away (and it could happen) from mid-20's let alone $40 pps as some over on OSIR mb were suggesting.