Under or over, whatever, but I don't think we should use the existing walkways (unless they're bobsky's, apparently.
)*. Lumber is cheap, and I think a good sub/rail-way system should be kind of independent of our walkways.
That said - and I'm kind of sorry to ask a personal question, but - Brad, when are you getting back home? Do you think it's possible to cut your plans short because of Minecraft? Can we buy you a ticket on the red-eye?
*
bobsky, where are you talking about? I don't think I've seen it. ?