Nice concept. but different meter speeds?
I try to do this without the aid. When i follow the meter from start to finish, yes...HUGE missses.
If i try to just "window" my view, like your software does. I also get misses because of the different meter speeds in the equipment and the length of the stroke.
So i do a combination of both, or at least i try. I look at the speed of the meter and then "window" the ding area and wait for the meter to show up.