P30L will make you hate the inside of the trigger guard. The cutout rubs on your trigger finger, and when i had one, it barely ejected casings. Out of the box it stovepiped every 10 shots, and after it was broken in, at best the casings landed on your shooting hand and dribbled off. Oh and that trigger reset.. it feels like a mile and a half. Love hk, but be aware of that model
To answer your question, striker fire give you the exact same trigger pull with every shot. Double/single action hammer fired pistols give you a heavy pull on the first shot, then light for every shot after. Requires a bit more practice to master.