The DM2A was a good sounding box, but the BC1 annihilated it in terms of midrange quality. The KEF 104ab was far better in the bass as well, but all this was towards the end of the DM2's life and IMO B&W went right off the rails until the 801 came along some years later.
The foam surround/grille 700's were my favourite and were better than the HB1 IMO. The HB1 took over when Mission started to change their range and beggared them up I thought. A few years later, KEF sorted the Coda (III) and the HB1 sounded a bit artificial, especially with the flawed crossover they used, making the treble detach and "spit" along with the music.
I can't go on and I can't go back, I don't feel so matter of fact,
I tried and tried to make good sense, What's the good to try it all again?