@earth_imperator is the dumbest mofo alive... and he's competing with soy and LF.
You can't just base the strikes equidistant from cash, you need to price the synthetic (MSFT forward) to the term you're trading. MSFT is trading 273 out to May so price your strikes accordingly. skewcorr is index-dependent.
IOW, you would capture more skew (larger credit) if the trade were d-neutral here.