A month ago, I was in the same position as you. I finally went with braid, because of the kits sold by Bargain Fittings. I got full 1/2" fittings, with a LARGE diameter braid clamped to a handy fitting that just screws into the back of the valve assembly in the HLT (I'm using the Rubbermaid / Home Depot 10 gal. cooler conversion). It works so well, it's a little bit of a letdown. Very little vorlauf involved, and it drains very smoothly.