A lot of the nuances of long line casting technique are acquired over time, there is just too much to comprehend all at once. Information overload! DVDs offer many advantages, techniques of the masters, so to speak, little tidbits from each, absorbed, imprinted, one at time, over time, on the river with a $*** load of
intense thought put into each cast.
And while doing all that, you may as well be multi tasking, fishing, & thinking where would Mr Steelhead be, & why, & how to I get my fly in the zone?