There is some truth to what @NinjaDoc says, there are times when it is useful. I paired up with @ricer1 once, we were southbound on 148. At the very beginning of our run down it we caught this super slow old lady, I got a break with a straight to get around her but John got caught behind her. I was able to gap her and call back to John when it was clear for him to corner pass her.
Going back to my comment earlier about shooting people that pair with me. I would like to point out that the very next day after that ride John was dead. True story.