The stainless mono chassis models such as the S7, 3, 3A can suffer from cracking in some areas. The most obvious one and easiest to spot is where the front cross member is attached to the body sides. its no great problem to put these right, but they do need to be spotted. The South Yorksish area members meet at the Red Lion in Todwick ( just of the M1 junction 31) first Wednesday of the month, with several kits usually turning up. Pop along and have a chat!