Two motors vs 1 could sound like a beefier system but how much torque do ya really need to swing a piece of aluminum tubing? Granted, more when they're frozen to the bottom of the truck under 3" of slush. (unless ya pay up for the heated boards?) Also raises the issue of keeping them in sync. A bigger motor at one end with drive cables to the other end sounds like less potential for problems.

My other thought here is that with 1001 electronic potential gremlins already built in, what's one more? Not saying don't research it, just saying maybe pay attention to how far down the rabbit hole you go. In the case of the aftermarket automatic one: they'd have to tap in to the body harness to do their thing - how does the warranty dept feel about that?