Masi Specials and GCs up to 1975 or so (I'm not sure when the geometry changed, but it was certainly different by 1980 or so), all have slack angles (compared to 80s and current frames) and have a very plush ride. Steering is a bit slow due to the geometry of the front end. As Brian Baylis has noted more than once, early 70s Colnagos have a more refined geometry, and handle better than a Masi GC, all other things being equal (that is, steering is a little quicker, but not too quick, and my sense, after riding lots of both, is the the Colnago has a more refined feel in general..although Masis are very nice, if you like that kind of thing...)
The plushiest bike I have right now is a 60s Pogliaghi that's slightly too big for me. On a rail on fast descents; good climber; a nice, old-fashioned-type ride. Of course, that Folgore recently on ebay is a *real* old-fashioned ride!
Charles Andrews
SoCal