I recommend buying a single rod stainless steel, or aluminum range rod for both loading at the range, and for pulling loads if that ever needs to be done.
The argument about cushion wads relates to lubed wads " following " the shot and punching an hole in the pattern. The solution is to split the cushion wad in half- doubling your resource- with our fingernail so you have one cushion wad for two barrels. That happens to be very convenient when loading a double barrel S X S shotgun!
I recommend putting an overshot card, or wafer, on top of the cushion wad to provide a smooth hard surface to push the column of shot out the barrel, and to make sure the cushion wad pushes equally on all sides of shot column. That way, the shot leaves the muzzle at the same time all around the barrel, and you don't get the gas and wads pushing on one side more than another, and blowing the pattern. Obviously, use a second wafer on top the shot. Before going shooting, use a nail or awl to put a hole in the middle of the wafer so that air escapes out that hole, and does not have to blow an edge of the wafer to escape as you are loading the barrel.