OK I get it.

A straw full of water with only the bottom end open won't drain very well.... until you take your finger off the top end. Makes perfect sense.

This method won't have to rely on a still-beating heart to rid the carcass of blood.... it simply runs out in passive fashion thanks to gravity.

Amerman has a video on the web about how to properly bleed a fish. In it, he talks about 'squirt-bleedin'... where the heart creates pulses of blood that 'squirt' with each pump.

This top/bottom slit method sounds like the blood literally falls out in one raging gush and doesn't stop till it's virtually all gone. Can't wait to give it a try.

Considering he's from Enumclaw, that Stam's a pretty smart dude. If you hang around him long enough, somethin' good is eventually gonna rub off.