I just got a Glock 17 that I'll be sending to Glock for an upgrade, and I'm thinking of having Glock replace the standard cheap plastic sights. I would be using this gun mainly for target practice and maybe IDPA/competition shooting. What are the best iron combat/IDPA competition sights out there? I was thinking of having Glock replace the plastics with the same U and dot set up but in a steel version, would these be good? I like the arrangement just fine, but would a three dot/other arrangement be better? I also thought that night sights would be cool, but since this gun won't likely be a carry gun, I'm thinking night sights would not be good for competition/target shooting. What do you guys think?