I've been an SPG platinum member for about a year now, and have always had my account set to earn points. However, due to the upcoming US Airways Grand Slam promo, I just switched my earning options to miles...but I haven't had a stay since then to see how this works. Basically, in the US Airways promo, you need a minimum of 200 miles per stay in order for the stay to count as a "hit." So my question is, does my 500 point Platinum amenity also get transferred to 500 miles, in addition to any miles I get from the room rate? If those 500 points translate to miles, that's great, since then if I have a one night stay somewhere and the rate is less than $200 night (which is likely), I know I'll still get the hit... Thanks in advance for any insight into this!