is there a way to tell the 185's apart fom the 285's ? I mean apart from looking underneath? take a look at this video.
http://www.youtube.com/watch?v=tj6XaW-Wk98 the 285 seems to have a linear (rack and pinion ) feed mechanism, as compared to the rotary action of the 185 ( 99) I would be interested in a 185, but not so much the 285.