I'm not going to mind whether or not they read the first, second, third, or fourth week's stuff. I'm going to cogitate all of it but if they don't want to then they definitely don't have to, and they'll be the subjects of none of my grief.
A lot of the people who are going to be attending don't read Seth, and they're busy. Cumulatively this means that it would be stupid for me to require them to read/listen to everything - I'll show them the links but let them know that we'll cover that territory in the conversations. Then, at the beginnings of and throughout the sessions, I'll incorporate that information where it's relevant and where it'll pave a road that I know we should walk down.
(This might be a little unconventional and it definitely rests on my ability to communicate. I have faith in myself and I'm willing to accept failure, and reroute if it all falls down, but this is a personal decision so I'm not going to pretend that everyone can, or should, follow this path.)
I do think it would be better for folks to read the documents and listen to the audio, but I'm not going to make the environment unpleasant for the folks who don't want to do all of that.
Having said that, I am trying to get as many as I can to read it, and I'm doing that by thinking about the value that Seth's work has brought to my life and my thought, and what other people can get out of it as well. In other words, by reflecting on my experience, by trying my best to empathize, and by being honest and direct. Hopefully that's enough! =)