I'm a retired yrc driver,started at yellow,but I remember back in the mid 70s I was a bullhauler running cattle to west Texas,all across 40 I ran with many Big R drivers these were some of the funniest and best drivers I can remember.We had lots of fun and yes they kept up with our big trucks and sometimes ,if you were not watching, one would pass you. After they cut their trucks back we kind of lost touch with them,but they would holler at us and we were always glad to hear from them. I think runnin with them is why I wanted in the freight business so when yellow came to town in 82 I went to work for them as Big R was not in our area yet. I retired in Oct of this year and many good friends , both yellow and roadway,that i miss every day.
Good luck and Merry Christmas to all.