I've owned several trucks and have not seen the tattle tail on any of the pads on the trucks I've owned and just looked at the pads on my BIL's dually and they have no tattle tails... he has a full set of OEM replacement pads that are still boxed. . they don't have them either...
One of the main causes of squeaks is a high speed vibration caused by dust... I've blown them out, washed them out with a garden hose and the squeak is gone for a while. .
Like Bob 4x4 when we'd turn them in the shop, we'd only take off what was needed to clean them up. . since disc brakes don't care if one is . 050" thicker than another we'd just clean them up..... often giving back rotors that will go another life cycle... however some of the extreme full metallic brake pads will wear the rotors faster than other products and yes they stop faster and don't fade as much but fully exceed the design standards of the factory pads...
I just did the brakes on the rear of my 05 dually, with 130K miles and expect the fronts to go to 145 or so before they need work. . but I just pull 15K lbs and don't drive over the speed limit and use the exhaust brake... .
Just my thoughts... .