In reply to midgets of the world unite: This is tooooo funny. You've got me in stitches at work.
If you buy an Entre Prises finger board, they include a leaflet with a bunch of figures from the Petit brothers' best efforts at various hangs/moves on the board. If the figures are true, it is just f*cking amazing what top level climbers can manage, one handed, etc, hanging from dime edges, etc.
8c doesn't sound do tough if you can imagine having that kind of strength. It's getting that sort of strength that I find confusing.