I fish a 1/64 ounce jig for a lot of my fishing. I will at times add a size B split shot to help with casting distance. If using NanoFil I will have a fluro leader and no split shot. But....here is why using a split shot above the jig is not a good idea...IMHO....and why I have 1/32.....1/24....1/16......and 3/32 jigs made with an #8 hook. I read a great crappie article several years back that said if you have a split shot 18 inches above the jig that the fish could inhale the jig, and move 18 inches up or sideways, and you may not feel it. Now that is all theory......I have never seen any video of that but it sounds plausible to me.

Regards