that was the first time i had heard it too, but it was from a friend who has been a bike messenger for a few years now and he told me he had heard it around from people at work. but i wanted to know more about it because i was looking into purchasing the big block. and yes i have come to understand that. but as i am not 100% familiar with the details of the bike or how geometry works when one angle changes etc. i have been riding for a little while now but i am fairly knew to the technical side of it so it is rather difficult to express it completely. i currently ride a flite 100 and love that geometry. looking to stay around the same but as i am giving the frame to my brother i am in need of another. do not want to get another bike exactly the same as there would be no point. and i liked the all city very much. but heard about the problems with the rear stays.