I usually drive the speed limit, whatever it is.  And I often slow down in the truck lane to let vehicles around me.  I don't like being the lead dog in a string of traffic for very long.  I also see those drivers that speed up when people have a chance to pass--grrr.   And from Soldotna to Homer so many people don't even know what those new little passing lanes are for.  That gets frustrating and someone ends up passing when they can at 85 mph.