Well, that would also mean that they could travel from Waygates......
I think that building waygates should be a very late tech. I mean, they will eventually discover how to do it. Eventually being the key word. As a side advantage, they would be able to travel from the waygates that they make. Say that they make a travelling ground automatically as soon as they make a waygate.
By the way, the male channelers made the ways before they went completely mad, as a repayment for the ogier offering sanctuary in the steddings. The channelers wouldn't go mad in the steddings.
Edit: But I guess it makes sense to use the rebase command as ways. The paradrop ability should be channelers only, and rebase for everyone. That way, when they get to the ways, they can go only to a certain place; a waygate. Problem is, we can't put in Machin Shin, or the taint in the ways. with the railroad idea, we could.