I always do a series of drills that stress areas that a shooter must become proficient in. Trigger control is probably the number one skill. pistol-training.com is a site I have used for a time that has a bunch of drills that will make you a better shooter. I practice drawing from my holster at home along with a lot of dry firing using snap caps. I compete in IDPA and Tactical/Practical matches. The skills acquired are not like riding a bicycle; they will diminish if not practiced frequently. My carry gun is an XDM, 40. I use a 180 grain Federal Hydra Shok load for defense. One other thought, we tend to practice what we are good at, not what we need work on.