ww.schwalbetires.com/bike_tires/road_tires/marathon_mondial I'll have probably 3K miles on my Schwalbe Marathon Plus tires by the time I launch cross country in May so it'll be time to "retire". I'm look'n at the Schwalbe Mondials right now. Can anybody give me any information about them? Are they reasonably comfortable or will the kill my butt between Seattle and Miami?

EDIT: I just read Gyro_T's comments about this tire and I think that answers my question, unless somebody has anything else to add.