Hope sometime you'll find it useful. Depended on the Team. McLaren, Chaparral, Gurney etc yep A&N Fittings with Braided lines. But if you were one of the Many low bucks folks, barbed fittings, Rubber tubing and Hose Clamps were not a rare sight. That's a really slick wiring method you have there! Did you work in Electronics? Your setup reminds me of a Wiring Harness Board, just LOTS Smaller.