Ok well today was the 1st time I got to the range since I broke my leg in march. After 4 screws and a rod in my right leg I am walking again without crutches. I been back at work, and so far so good. I haven't fired my glock 17 in a long time, and I took it to the range 1 hour ago. I was very pleased with my results with the crimson trace laser grip on my Glock 17. The problem I see with it is its not left hand friendly. Right above my left thumb knuckle I got a 4 or 5 mm blister from the laser grip rubbing up against my hand after 15 (17round) mags, but the laser once I sighted it in correctly is dead on at 7 yards. I can draw from the holster, and I hit center or near center without using my sights at all. I took pics of the targets. I know its not the best idea to practice firing without using your sights, but in a real world up close and person last second gun fight I pretty sure the only part of the sight that might be used is just the front sight. Another thing i dont like about the laser grips is that there is no way to turn it off, and if there was a on off switch or button it would be 10 for 10 in my book. But the fact that is it not left hand friendly, and no on off switch gives it a 9 out of 10.