Originally posted by FrenchCreek
Lok at the elbow!
An "overactive" one will almost always wreck the cast, it causes many problems and "fixing" the elbow can greatly enhance the "solutions" we all try to convey to casters we try to help.
Taught to cast by an elderly gentleman neighbor (Mr. Coles); that was his main point for a 10-12 year old (really) learning how to cast. His 'tool' was a roll of newspaper under the elbow; instant feed back if the roll fell out from under your arm. Not good.
As timing/distance improved then you could drop the paper as you had to move the arm forward and back for double hauling, etc.