3 line tanks - 3rd line bend tubing or use tubing with clunk?
I have always bent the brass tubing for the 3rd line in a 3 line fuel tank setup so it touches the bottom of the tank to act as fill/drain. I have seen some people mention that they use a 2nd line of fuel tubing with a 2nd clunk for the fill/drain line.
Is there a preferred way to do it or problems with the 2nd clunk method such as lines tangling/twisting/binding during violent 3D? The bend method can keep you from sucking up all the fuel at days end. Curious what everyone else does for the 3 line setup?