Three or four years ago I auditioned the Ohm Walsh 200 MkII's with their at-home trial and found them missing the special qualities I remembered. They were a bit on the heavy sounding side and lacked the sense of space I was after. That was a pity as I really wanted them to be as magical as the F's from many years before.
I never owned the F's and heard them so very long ago; but what you said here confirms what i do remember and how the F's sounded compared with MkII's.
I think the F's cone is the coolest looking speaker there is.