So, as I am home, Covidizing and not venturing out in public, I've reread this thread, and had a thought you guys might be able to help me with.
I use PVC trimboard to build my cranks, so they are totally waterproof. In thinking about how to get an erratic movement in my sliding ballast, I am now wondering if I put something like vaseline into the crossways bore for the moving ballast, would it offer enough resistance to get the ballast to move at a different "frequency" than the rate of X ing of the lure?
I am definitely going to try it in a test piece to see if it does make the ballast move differntly.
Of course, it might just become a lubricant, or freeze the ballast completely, but I won't know until I do a test...tomorrow. I'm fighting allergies, so no more shop work today.