I can ride from 53 to 56 or so. My legs are a bit short, so the TT on a 56 is right up there, you know? But the length feels better at that size because my arms are longish. It's always a compromise until one day I have a frame made to fit.
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1964 JRJ (Bob Jackson), 1973 Wes Mason, 1974 Raleigh Gran Sport, 1986 Schwinn High Sierra, 2000ish Colian (Colin Laing), 2011 Dick Chafe, 2013 Velo Orange Pass Hunter