Bad advice buddy. First of all, the maximum percentage one can make from shorting any stock is 100%. Maximun percentage for going long is infiniti. Just look at paiv 1500% in three weeks.
Second, If you sell restricted shares to a third party and those shares end up in the U.S. market before they vest, both you and the third party could be liable according to some stringent SEC rules. Of course since the SEC won't be able to locate the third party because of jurisdiction issues, then you could be liable for all the fines on your own. Do not mess with the Securities Exchange Commission (SEC). They made these rules for a reason. If you invest in any stock using proceed from the sale of restricted share certificate, then you need to make sure you have lots of $$$ to pay for possible fines. Ask Martha Stewart what it feels like to interfere with market forces (even with her millions)
I have taken several business law classes and I believe my opinion on this issue is close to accurate.