For a month from now: mid may is probably the earliest I could do it.

For next weekend: bonelesschicken, gorn, and everybody else who wants to go... Let's make it the wicker park swingset at 9am on saturday. As it stands we will take the IPP westerly route, unless another route is suggested. If we get tired and do less than 100 miles, whatever, we'll play it by ear.

It feels like I'm hijacking the thread ChicagoDave, but a century next weekend was a great idea. I look forward to the one you are still planning, with some lead time you will be able to get a much larger group.