I do the same thing. I setup my G34 and 35 so that I can put the front sight at the bottom of the plate on the plate rack at 15 yds and hit center. For a 7yd "upper A/B" shot I'm aiming just a little below the bottom perf of the upper A zone to hit the A. I find this way I can more easily look past the sights to see my hits if I need/want to. I'm at the point where I can mostly call my shots, but I also want a visual confirmation of the hits if I don't call As. Probably a little slower, but that's where I'm at.
I absolutly hate factory sights with white dots that put the POI through the center of the front sight. I'd rather have either a 6 o'clock like I setup, or have the POI be right at the center tip of the front sight.
what sights do you have on your g34