I don't really do options. But I do think selling the Feb 7.50 puts was a pos-ev trade. And you can hedge the delta and the vega, and inverse hedge the gamma or something, using long April 7.50's, which you want to be long anyway, so you save a commission.
So far, it is a good trade, it has shown a profit, so one of those "things" must have happened
eLROY