Leader Fishing Line

When using a ball bearing leader for fishing whats the best knot to tie so it does not come loose?
When using a ball bearing leader for fishing whats the best knot to tie so it does not come loose when i tie it from the line to the ball bearing leader
different lines require different knots as each knot gives each line different line strength. For example, double palomar for braided is best because braid slips if you use other knots. For fluorocarbon use trilene knot. For monofilament use improved clinch knot.
Basic Fishing Gear : What Are Fishing Leaders?