After 15 years and about seven different disc/disc sanders from Black and Decker and Ridgid (flat square, shaped iron, orbital, 5", 6", .) and my 5" Ridgid was starting to spook with some metallic grinding noises (after probably 100 hours of grinding over the years), I needed a new 5" Orbital Disc. I was tempted to get another 5" Ridgid but it had one few cons: a bit bulky, recessed switch, no pistol grip with trigger switch, so I looked at half a dozen other brands in big stores can switch…