Would this cast work from a bank ?, to me the fly seems to go behind the angler then anchors 90-120deg before the sweep that creates the D loop, I fear I would do someone an injury. or if I got the flick wrong, hook the back of my head.
but would still give this ago,
although it might not be the most ideal manner i can't see why not. as any other Spey cast the anchor can be placed at different angles.
in this case, just as with a single Spey, start the sweep with the rod tip closer to the bank instead of straight down on the dangle to vary the anchor position point.
if you do manage to hook the back of your head please be sure to get this on film and share it with us, ok ?
anyhow, this cast is definitely one to practice in different circumstances
before fishing. no hooks/flies !
cheers,
marc