Good question! I fashioned a simple ‘seesaw’ or ‘teeter-totter’ to find out. :laughing:
The center of the switch and the center of the tripod hole are exactly opposite each other.
Fully loaded with 8 Samsung 30Q button top cells, the balance point is 1 cm (3/8”) behind the center of the tripod hole.
With 4 cells in just the rear carrier, the balance point is at the rear edge of the tripod hole.
With 4 cells in just the front carrier, the balance point is at the front edge of the tripod hole.
This means the center of mass moves just 1.5 cm (5/8”) in the cases of both extremes.
In short, the balance point is at (or just behind) the tripod hole or switch.