Bill,

I'm an old race car driver (mini-stocks, autocross)... Drafting was fine with me... One time I was driving to DC from Richmond and locked in of the first tractor trailer I could catch up to... Then another tractor trailer come up from behind me and we run 70 mph - give or take a couple mph's - for about 90 miles...

That, among truckers, is called the "rocking chair" and they rocked me for 90 miles... Loved every minute of it and they did, too 'cause when my exit was coming up I was able to get each of them's attention and as I exited I gave them a honl and both of them honked back...

B~