Bit of a rant about single-piston calipers used on mid-sized and big Mopars

The calipers I am talking about are the single-piston sliding-caliper units, where the outer brake pad reacts against the inner pad via the machined "ways" in the mounting adapter.

I thought my old calipers were dragging too much, so I replaced them while also cleaning and lubricating the "ways", but the new pads drag just about as much as the old ones did.

I notice that in this design the piston seal is the only thing that retracts the pad after the brakes are applied, and IMHO the piston seal just doesn't have enough strength to retract the pad, especially after the "ways" lose their lube and get a little dirty. I don't like this. I would like my front wheels to spin more freely!

I wonder if there is a higher-quality caliper, that retracts better, that would bolt into a big Mopar? (If the answer is obvious, please excuse my ignorance.)