buzz_knox: I have 3 P99's - 2 in 9mm and 1 in .40 caliber. I have found the 9mm's to be exceptionally accurate with a wide range of standard 115 gr. ammo and particularly with CorBon 115 +P ammunition. I actually prefer the long DA for carry, particularly for my girlfriend or daughter who lack extensive training. The SA takes about 15 minutes to adjust to, and the SA break is actually pretty nice. I love the ergonomics, and the wide notch rear sight works well for fast shooting, but is precise enough to put 10 rounds in a 50 cent piece at 50'. The 9mm's won't chamber 124 gr. Gold Dots, and the .40's demonstrate a problem with the slide locking open with rounds in the mag. My .40, of recent production, demonstrated that gremlin after 500 rounds. I sent it back to Smith and it was returned within 10 days. It arrived yesterday and, weather and workload permitting, I'll shoot it this afternoon to determine if the problem has been solved. I also shoot Glocks and, like you, find it hard to choose between the two. Ultimately, I like the P99 for its sights, ambidextrous mag release and DA trigger. That makes it perfect for some applications. I like the Glock's general reliability and +P+ capability. Lately, I find myself carrying the slick P99mm in a Hume beltslide when I don't want the weight and width of my alloy 1911. With 17 rounds of CorBon, the P99 still is almost unnoticeable and conceals easily under and untucked shirt. Of the two calibers, I think the P99 in 9mm, particularly with hi-caps, is a better choice than the still teething .40. YMMV.