[Fat Charlie]

With a bus or a big rig I'm usually far enough back that a couple of cars could slide in and it wouldn't look too crowded. Maybe a stack of four could slot in from an on ramp and then work their way to the left past him. The big guys give me enough of a help that I don't need to be that close, and at 70 with a draft I do as well as 60 without one. As an added bonus I'm getting there more quickly and not balking traffic.

There's no benefit in chasing a truck that's already up to speed, but I'll zip out of the tolls to catch one that's still climbing the hill and watch for one that just came up and isn't up to speed yet. If one passes me, I'm sticking with it.