BillH wrote:
Matt & Brian, IMO, the only thing to run is dual m/cs, Why so? If one fails, you still have brakes on one end. The added advantage is brake bias adjustment. The propotional addon valves work but, not that well and you are still depending on one m/c.
With duals, you can "bench setup" the system in the shop and dial it in on a test day.
Both Tilton & Wildwood make fairly good equipment.