Rule of Thumb?

[The Crew]

Is there a rule of thumb when matching leader to line? Specifically when it comes to #test? Mono & fluro and mono & wire and what about the swivel in the middle? What #test should it be?
For example

15lb mono and 50lb fluro leader and 50lb swivel?

or

25lb mono and 50lb wire and 50lb swivel?

Gracias

[justinfisch01]

The leader is more dependant on the amount of weight you are throwing. The rule is 10lb per oz. So if you are throwin 5 oz 50lb leader would be good. I fish a little different waters then you but heres my set up: 17 lb main line, 50 lb leader attached to that with an improved Albright knot. 2 rod lengths and 5 wraps around the spool worth of 50 lb leader. 1 bead, fishfinder slider. leader tied to 150 swivel. About 3 inches of 80lb leader to 10/0 circle hook

[HellRhaY]

what justin is talking is the shock leader.

i believe Biged is not talking about shock leader since he talked about swivel as well. there's really no rule of thumb. you can have a 15# main line with a 20# leader 1-3' in length.

[The Crew]

Fishfinder Rigs = 5/0 Circle Hook tied to 18" 50lb single strand wire leader tied to 50lb swivel tied to 15lb Berkely Big game mono

Bottom Rig = 4oz sinker tied to 15lb mono main line - 6" from sinker 50lb swivel attached to 6" 50lb Ande leader attached to 1/0 circle hook - 18" from sinker another 50lb swivel attached to 6" 50lb ande leader attached to 1/0 circle hook.