Way back..the Murry Bros made a vidio..some nice tckle prep stuff on it....
Drags were set by someone on reel with rod in rodholder....some one on dock wih Gloves on.....have person on deck pull on line while wearing the gloves......pull quickley with enough of drag set to put a little resistance on reel. The purpose of this is to warm up the drag. Person on reel takes up slack after each pull. do this 5-6 times
Now set the lever on reel to srtike button.
Put scale on the tag end of line with gloved person
Start retreving line and person on dock reads scale. when spool starts to turn...call it....that is the lbs of drag your set at.
adjust the drag setting after each pull until your happy with the lb setting.
hope that helps...