Crankshaft balancing 31 slow motion video

The crank here is spinning at 350 RPM. You can play it back at 0.25 speed and see things better. I've tried all sorts of electronic sensors for measuring the out of balance but dial gauges seem to be by far the best way to do it. The position sensor (6G75 crank sensor.) is easy enough for one scope input, it's detecting the out of balance and displaying it on the scope that's the tricky bit., then synchronising the signals so to see the heavy and light sides. On a previous vid I had success using a MAP sensor with a vacuum diaphragm from a Diamante, from cruise control. Once it gets close to a good balance, the signal gets drowned out by noise. Using slow motion video is a good option as you can play it back even slower, the heavy side and the light side become obvious. Can even see how there's a secondary imbalance on the front dial gauge, 120 deg after the main imbalance. same but different on the rear one. That will be from the Centre big ends.
As far as what it all means.
Most vids talk about grams but it's mass times distance.
Not only that but the reason it shakes is because it's spinning on a geometric axis which isn't the same as it's centres of mass. The idea is to make them both the same. The deflection on the gauge represents how it's going to be hammering on its main bearings.
A reading of 10 on the gauge, that's 0.10 mm which is 0.004 inch or roughly double the main bearing clearance. Ideally, we want to reduce it to less than half that figure, then it won't be wanting to hit the sides all the way around.
You can see I've already cut the end counterweights by 1.2 mm depth, there's more to go.
I like to measure about 10 times before I cut once.