Were selling many of the PK 380 and no complaints as of yet, although, I have not shot one yet. I find it very important when outfitting someone with a firearm/weapon that it feels good in your hand with the proper grip. If it doesn't fit like a nice pair of slippers, your probably not going to be happy with it.
Just for grins, ask your buddy to try the mini mags and let me know how they preform in your p22.
God, Family, Guns, in that order.