And IF, for some reason, you absolutely HAD to roll them by, you start on the first car, at the bottom, with a handbrake there. NOT at the last one or two cars. By riding the first car (or the first couple, if you can get two wheels back-to-back), you have the ability to catch a following car, and applying more brake, next car, etc...... You are in a big world of hurt, grabbing the last one or two, then finding you have no control, as you watch them roll away from you. Before it became "illegal", we would have bottled them, and rode the lead car, and dump the air, as we got into the clear of the engine, so we could recouple, and spot them with the power attached. You need good qualified guys to do this, who don't mind busting the air, on the lead end of a movement. (we rode the lead, so if needed, we could still apply handbrakes. we didn't usually test the train, to see if it would stop when it was dumped. it was just assumed it would stop. yeah, I know, don't even say it) With it being so much easier to just run-around them, though, I can't imagine why you just wouldn't do it the way they want it done. A lot of what we "used to do" is now illegal, and the amount of guys who died, or were maimed doing it, are the reasons we can't/don't do it, anymore. If you are spotting cars, I guess you are on a local. I also guess, then, you are paid by the hour. Man, I wouldn't care if the DS never let me out, to run-around those cars. Money for nothing, is not such a bad deal. Do it by the rules, and get paid for doing it. That's what they want, so "give it" to them..................