Does anyone have a tried and true method of cooking baked potatoes on the grill? We're planning to BBQ a pork roast on sunday and want to add some potatoes. We want the potatoes to be medium size, not too big. We'll wrap them in foil and then we're thinking of letting them cook until a little soft when they are squeezed and then they can sit in a warm oven until the roast is done. Any suggestions from experience would be greatly appreciated.