Interesting. So do you run an idler/tensioner, or just use the stock type of adjustment to keep the serp belt adjusted?
Sounds like a decent way to get some added traction from a single belt on a stock setup.
Even though the grooved pulley would be better for belt retention, wouldn't a smoothie work too as long as the crank, alternator and power steering were still the normal grooved with edge ridges to keep things in line?
Paul