Originally Posted by Darth Lefty

I think of it like a ski slope. Everything in front of you is your responsibility to overtake kindly because they can't be expected to notice you coming. Give them a wide berth if you can, you don't need to keep going full tilt, don't buzz them with malice. You should not be on a mup on a weekend with the impression you have a right to go 20 for an hour without interruption. They're not in your way because it's their way too. But there's not a lot of point to signaling when most of them won't notice and some of them will turn toward you looking over their shoulders. If you need them to notice, slow down and signal until they do.