At first the J frames feel huge in the front pocket. I use a sticky holster or a Mikas pocket holster. After a while it disapears and you do not even notice it. The cylinder choices are Stainless black, Bright stainless or Titanium in the PD. I advise against the Titanium to many potential problems if you screw up and clean it wrong or shoot alot. The extra 2 ounces with the stainless helps with recoil and bullet creep. I really cant tell the difference with the extra 2 ozs carrying.
If you have not shot these little guns yet the 360 with the external hammer will provide single action shooting at first that will help you get better control over the little dragon. After you become proficient with double action the 340 hammerless is better for preventing debris getting into the action in your pocket.