I've been shooting a Walther P99 QA for the last 6 months. Yesterday I borrowed someone's Glock 19 and was amazed at my ability (or the Glock's) to come right back on target effortlessly. Will I be sacrificing the ability to do this fast if I decide to buy the 17 or even 34? I know the trigger on the 34 is lighter, but assuming eveything else is the same, is it harder to get back your sight picture with a greater distance between sights? I shoot IDPA, so accuracy is important, but not dead-on accuracy.