I have both the LC9 and the PF-9. I have a Crossbreed SuperTuck and The Holster Store Pro Carry Belt Ride both purchased for the LC9 and they fit the PF9 perfectly. I also have a N82 IWB, Don Hume H715 36-1 IWB and a Galco Combat Master OWB all purchased for my Glock 27 and the LC9 and PF9 work in them perfectly. I think the two littlier guns fit the G27 Galco holster better since its not as snug and easier to withdraw. Their not loose enough to fall out unless I plan on being shaken upsidedown. The Don Hume is very comfortale and I only paid about $35 on Amazon. I like it as much as the highly touted Crossbreed and I can use it for any three of the guns. I tried a Fobus for the LC9 ( even the one with the retension screw ) and it was so snug it was almost impossible to withdraw. The OWB Blackhawk Serpa is great for the G27/26. Easy withdraw.
Hope this helps.