Hey gang, I'm about to start using my Glock 21 & 17 for I.D.P.A. matches, and wanted to take an informal poll/get suggestions on what sights you folks are using. I've always used straight black target sights on my 1911's, but have considered a fiber optic or night sight for my I.D.P.A. Glocks...I use Ameriglo Operators on my 19 & 23 for carry. I've also considered an adjustable sight, but have never really cared for any. Thanks for any info...just wanted to see what some of you are using for matches!