Is it possible to duplicate a rods action. For example I have a old herters spinning rod that's 7 foot. When my dad ordered these when I was young, they were med. action. This rod to me seems light action. There are no markings on the rod. All I know is it's 7 foot and has 7 guides,and about 40 trs. old. Any help in finding how to duplicate it would be appriciated.