As Mr. Underbridge notes, I am interested in the ride quality afforded by (much) wider tires running a (much) lower pressure. That said, I have no real experience as to what those characteristics might be (I can repeat the information I have read online--smoothing out bumps, rolling easily over cracks, etc.--but I don't know much beyond that). dynaryder brings up salient points concerning weight/size trade-offs. I would be interested in more detailed comments from any of you (like HardyWeinberg) who have spent some time on the Big Apples.

I imagine that to a certain extent the change to Marathons/GP 4 seasons might be as drastic for me coming off of the stock cross tires that are currently on the bike (32s).

Thanks again for all the info.