There are two basic classes: knots on slippery material like monofilament and knots on ordinary stranded or braided line.
Fishermen have worked out good knots for monofilament, but they jam when used with stranded line.
The strength of a knot or bend in stranded line can be predicted without technical analysis by looking at the curvature of the line as it passes through the knot. The tighter the curve, the lower the breaking strength. The strongest bends, like the Zeppelin, have very soft, symmetrical curves. They are also the easiest to untie.
Fishermen have worked out good knots for monofilament, but they jam when used with stranded line.
The strength of a knot or bend in stranded line can be predicted without technical analysis by looking at the curvature of the line as it passes through the knot. The tighter the curve, the lower the breaking strength. The strongest bends, like the Zeppelin, have very soft, symmetrical curves. They are also the easiest to untie.