I posted a similar question regarding ammo for a PF-9. Some people carried the standard 115 gr for 9mm. Most carried the more popular self defense ammo -- 124 gr in standard or +P pressures. I don't recall anyone responding with the same concerns of short barrels and really light pistols. I was hoping for something light for reduced recoil assuming the increased velocity would make up for the reduced mass.
EFMJ seems to be a good alternative but everything is still up in the air for me.