When Spey casting the delivery casting stroke can be done using perfectly upright rod when anchor gets casted to the side. The back cast on Switch cast forms the anchor almost rod length away as well although there comes no centrifugal effect.
Upright rod improves cast efficiency a lot when overhead casting! I believe it improves Spey casting as well but less because Spey casts have more elements which can have more influence.
For overhead casting, I agree. For spey casting, I simply do not know. Hence these posts.
My understanding is that the anchor is close to the caster in classic underhand casting where very little power is used to form the D-loop. An upright (vertical) rod in the forward stroke would therefore have the D-loop and the forward stroke pretty close to each other.
With longer spey lines and flat (dynamic) sweep, the anchor can be the famous rod length's away from the caster. In this case, a forward stroke with an upright rod could have a distance of 4 metres (13') between the two railroad tracks, the D-loop and the outgoing cast. That is quite a distance.
But like I said, I do not know.
Originally Posted by bender
I must say I can't do 180 principle consistently! Only on Snake Roll. Single Spey only when I cast shortish Scandi head and I have fished longer without changing anything. I just try to land anchor mostly to upriver to avoid line collision when anchor lifts out.
I have found 180 to be a silent killer. Casting long lines, long days, at some point the casts begin to deteriorate. Eventually, after so much experience (in trying to fix the wrong things) I have found that 180 is almost always the culprit. Typically overrotating with the body, shoulder or hands has sent the D-loop out of the desired plane.
Thanks for your insights once again.