This post is almost all wrong about the PM9.
I had my gun before it was built Mass approved. I searched it out because it suited my needs. Once you load you PM9 to carry, you are set to go. When you hit slide lock or do a tactical mag change, thre is no problem with a quick reload, and the manual of arms is nothing new to anyone who has fired a semi auto pistol.
With a round in the chamber, you can dump a empty or almost empty mag and insert a fresh 8 rounds with no trouble. If you have to re-charge the gun, it's not as bad as it sounds. The gun is small and you have to handle it so the slide doesn't get hung up on a reload, but if you keep your fingers and palms away from the slide and rails, the gun will cycle fine using a "Practiced slingshot" load. Especially after hundreds of rounds of break in, which were just fun to shoot.