Hansen -
Grass ain't water but it's sure better than what you're doing now with all due respect. If you can get someone to tape you, that's best but if not here are a few suggestions made as if you were going to post your videos for us all to comment on for you:
1) Profile at full d-loop scale - side shot far enough to see the whole rod in front and the whole d-loop in back from the casting side
Side profile allows the lift, speed and angle to be watched. Then it allows the flatness of the backward sweep to the d-loop as well as the rise to be observed as well as the anchor. It does not however allow for the accurate detection of the casting plane (angle of aim) that the d-loop ends up in or the true tracking of the forward stroke so we need the rear view.
2) Rear at full height scale - standing directly in back of the casting side far enough back to see the rod's highest height through the whole cast
This allows the direction of the energy wave coming off the rod into the d-loop to be watched for alignment as well as the forward casting stroke's tracking angle (rod tip travel). You also get to see the line sailing away, which has a certain feel-good aspect to it.
3) full or near full whole-cast angled (isometric) scale from casting side taken from a higher point like a bridge or hill near the river including d-loop
This angle will provide general insight for anything not easily detectable in the other two, like anchor shape, turbulence in the line, poor d-loop shape, body position and rotation, etc.
Casts: Do a switch, single spey with 45 deg min chg, and double spey with 90 deg chg. for starters.
That should be enough to get started. When can we expect to see this posted? :lildevl: