Columbia/Coronado boats from that era are largely POS. Lots of interior
room because of high freeboard but very poor construction and as little material, like hull layup
, as they could away with. Not familiar with the Coronado 34 specifically, just their other boats from the late 60's till their demise in '74. The earlier Columbias are good boats, those designed by Charlie Morgan
, S&S, and the very early Tripp boats.
Just remembered that someone bought out Columbia
about the time they closed up shop in Costa Mesa and kept the name going with different designs into the '80s. Hear those boats are no great shakes either.