I have to agree on a few things. First, run what ya brung. No electronics doesn’t mean no fish. Just means different techniques. The countdown method stated earlier is spot on. Also have a straight and curl tail body, both do the trick when the other won’t.
The depth sounder line worked for many generations seamen long before electronics. Different knots for different depths.
If I know I’m in deep enough water, I cast and close the bail and let the jig pendulum back to me, then hold it still for say thirty seconds or so before a slow vertical retrieve. You’re testing for depth of fish. Count on the fall and count reel rotation on the retrieve. Find them on the retrieve and you can unlock the anti reverse and backreel back down to them.
Count on losing some jigs, so don’t spend lots on them, good yes expensive no. Keep after it, we’ve all been in your shoes.
Creativity is just intelligence fooling around