[jcp123]

I try to keep a sight line ahead so I'm not surprised if the truck's gotta jam on the brakes. I also found that the benefits extend back from the truck a pretty good distance - maybe about 3 seconds?

On the flip side, as a trucker myself I don't mind someone drafting me all that much, more worried about their reaction time if I have to slow, or damage when a tire has tread separation, etc. unless it's at night when the headlights would be in my mirror, I find it a courtesy when my follower sticks to the side of the lane so I can see the car instead of just the shadow.