For a brief period, early in my policin' career, I owned two of the original P7 pistols, what is now generally termed PSP. I carried concealed in a Bianchi Askins Avenger, and on duty in a locally-custom-made flap holster. One thing about the P7 that is very important to note is that the balance point is centered in the grip area, so a holster has to be quite tight to keep a firm grip on the pistol, and the belt MUST be stiff, or the whole rig will flop around.
When my PD went to open-topped retention-type duty holsters, no such animal existed for the P7, so I reverted to a sixgun for duty. During a subsequent financial squeeze, all of my firearms went away, except for one duty sixgun, one back-up snubby, and one shotgun. When I returned to using an auto for a duty pistol, I carried a Colt Commander. (It is normal for peace officers in my region to own our duty weapons.)
I considered acquiring another P7, but for a long time, the exchange rate worked against me, and other priorities have always seemed to conflict.