"I emailed [worldforge] a while back about using cvs in a
dual-checkout mode."
"I needed to do a small development branch on a project I am
doing, so I tried it out. It works! Here's the [accurate]
description of the necessary cvs commands."
"This article is of interest to people who use cvs, are working
on a massive open source project - thousands or millions of lines,
with several inter-dependent components, several developers and
tens of man-years of development effort."
"You think this isn't a problem? That's because your project is
too small. Wait a few years, you'll find out what I'm talking
about."