Legendary - the whole idea behind the braided lines is to take flex/expansion out of the system. When you hit the brakes hard, some of the pressure you put into the system doesn't get to the caliper piston - it gets absorbed by the rubber brake lines expanding. We feel that as sponginess or give in the pedal. What we'd like is a very firm pedal - it makes it easier to modulate the pressure we put into the system. Unless you remove all that rubber and replace it with something that won't expand as much, then you haven't really solved the problem. The braided lines, as pointed out above, are actually a composite. An inner liner of teflon or nylon is wrapped with braided stainless steel to provide strength, resistance to expansion under pressure and abrasion resistance. You'll feel a noticeable difference in your brake pedal if you do away with all the rubber and replace it with the stainless braided lines.
