Smallest Ball Bearing Swivels?

[hookedonlunkers]

Hi all, I’m setting up new lead core trolling rigs with level wind reels. I want to use ball bearing swivels to avoid line twist between backing and lead core and lead core and leader. The problem I’m having is that even the size 0 spro ball bearing swivels won’t fit through the level wind.

Does anyone out there use a different solution or have an idea on a source of even smaller ball bearing swivels?