The Springer Precison 75B mount and a Burris FF III with 3 moa dot has been on my 97 for 2-1/2 years and survived many bullseye matches and demo videos out to 100 yards with zero problems. I did have to shim the dovetail when I first installed the mount on my particular slide but it hasn't been touched since.
I have the same parts on a P-09 and a 75B 9mm, and had the assembly from the 9mm 75B slide on a P-07 long enough to win a local bullseye match, then it went back on the 75B slide.
The results are limited only by your ability to place the dot in exactly the same spot from one shot to the next. The hardware itself isn't sleek or pretty, but it IS functional. I've got lots of videos to illustrate.
Joe