Fredd

I think i understand, So the idea is to match the diameter of the lines together. So if you're doing 15lb braid to 8lb mono, you really want an 8lb test but you're using the 15lb braid to match the diameter of the mono. That makes sense.

Sorry. That's not what i mean. I mean, if (hypothetically) a 10lb line breaks with exactly 10lbs of weight, then why have 15lb main line with a 10lb leader since 10lbs of weight will snap the line anyway. Why not just do a 10lb line with a 10lb leader?

I have a stupid question about putting leaders on lines. I usually see people doing something like 15lb braid to a 10lb FC leader. Doesn't that effectively make the entire line 10lb since a chain is only as strong as it's weakest link? In other words, wouldn't the 10lb leader be the weak point where the line could break so what's the point of using 15lb braid?