Originally Posted by runningfish
So, my questions are.
1. Is it really matters casting underhand or traditional? Is there such as thing as one is right and one is wrong?
2. is the underhand casting works better with longer spey rod with heavier head?
No matter what you read - a double handed rod means two hands are used in the cast.
They work together and both wrists 'snap-rotate' in the same direction - anti clockwise.
The bottom hand drifts forwards and down and then is pulled back towards you while the wrist snaps and at the same time the top hand drifts forward and down and snaps forward away from you.
They should move roughly the same distance and either stop and start at the same time (50:50) OR as I do - 'kick start' the whole rotation using the bottom hand like a trigger.
Either hand can dominate – but it should not be by much at all. Both play an important role – they complement each other. The actually keep each other under control.
The rod tip should move 90 degrees on the delivery stroke. No more and no less. The rod should start 45 degrees sloping behind you and finish sloping 45 degrees away from you. (Longer headed lines may need you to 'drift' either side of this angle to allow time and to stop over-sudden power - but this remains the 'business' range in terms of power applcation.)
The strict adherence to this is a clear indicator of how good a caster you are. Practice in front of a mirror or refection from patios doors etc. I would recommend you dont let the rod butt hit you in the belly or anywhere else for that matter. If you do, then your wrists may not be in the correct position to snap rotate efficiently nor stop the rod quickly at the end of rotation.
Getting the two hands working together is the most difficult part of casting the double handed rod to master - especially for those used to single handed casting. Get this right and the rest is easy!
I personally think talk of underhand and top hand is unhelpful. All Spey casts are two handed casts. Both hands are equally important and work together - just watch the video above to see