The beleaguered manufactured housing market is getting a volume boost from new products – particularly adjustable-rate mortgages, which are entering the market in an increased number in recent years. But ratings agencies have been slow to change their perception of a segment where keeping loans current has always been a major challenge for servicers. Once one of the fastest growing segments of the mortgage market, the manufactured home business fell on hard times in the late 1990s, as rising delinquencies...