For buddy stands, do I have to use two lines? I was hoping there was a way to go up and then send the guide (or whatever you call it) back down for the boy.
Mike, you can make spare pursik knot out of pursik cord to attach on each lifeline. Once the first climber gets to the top and ties off, the second can tie into the pursik and head up. You don't want both people to be hooked up to the lifeline at the same time though.
here's a pic of a double lifeline HSS makes
And if you want to order pursik cord and tie your own, you can order it here, and I can show you how to tie it. You'll need 2-3ft of pursik cord for each lifeline to make it a double. 6mm would be fine
http://www.cmcrescue.com/equipment/prusik-cord-load-release-hitch-cord/