Usually carry mine in a Mike's IWB holster that migrates around from waist-band to pocket. Shoot for practice WWB 115gr FMJ (or equivalent), for carry prefer Federal 115 +P+ BPLE (from ammoman.com). Limited shooting of the +P+ due to manufacturer's warning about excessive wear on the gun. Usually no more then 2 mags, since it performs close enough to WWB for me to feel comfortable. Heck, main difference I notice is the groupings seem to shrink an inch or two. Surprisingly, I don't find the difference in kick noticeable, but that could be because I have a Houge grip with a bicycle inner tube stretched over it. I have small hands, and quite surprisingly find the slimline grip of the PF-9 almost too small.
Also, if you freshly purchased your PF-9, I HIGHLY recommend polishing the feed-ramp to nice shine. I did mine using a Dremil felt tip and their brown polishing compound in all of 2 minutes. I've yet to suffer a FTF after who knows how many rounds...Don't think I've ever had an FTE either.