At home flywheel balance....

So basically you need to add weight to a neutral balanced flywheel opposite to where the holes are drilled in the external balanced flywheel but there's the all important question of how much weight to add and where to place it. I don't get what the jig is for, are planning on testing different weights at different distances from the center?

Yes, that is what jig is for, to allow me to see what the weight changes do. One neutral balance flywheel will have weight added to make it usable for use on a 360. The other neutral balance flywheel I have will have weight removed ( but not as per the Mopar diagram) for use on a 360. Accuracy will then be tested on a proper electronic balancing machine.