Especially at night when they can see the headlights in the left lane, some of them do move over once you undertake. I find less people move over if...
I am always aware of bikers and take extra care around them, give them more room than I'd give a car for example, still had someone indicate to move...
Middle lane hoggers. Passed about 9 in the left lane Saturday night going to work, as I reached the front of team lane hog the nearest vehicle ahead...