I have a 9FS which i wear at around 4:00 IWB. The butt can and does print if you bend over much at all. I can't decide if it's worse at 3:00 or 4:00. Cool thing about the 9c is that you can use full size mags and there's a company that makes a slide on grip extender for them.
I'm really considering getting a 9c or a single stack 9 when funds become available for better concealment, especially in the summer. I did hear a rumor that smith is coming out with a single stack CC gun in the M&P lineup but I somehow doubt that is true.