It is quite apparent that as time goes on even those with both twr and apc are becoming less aware of the others problems. However, there is a greater understanding of TMA issues. I would be curious to know if the TMA people feel traffic presentation is better, and co-ordination easier, because the apc controllers have a better appreciation of TMA now they're in the same centre.
Although the original idea may have been to ease co-ord between TMA and apc, there is a definate advantage to face to face co-ord between SS, GW and Thames. It's a shame Thames isn't adjacent but the odd strip and ident is done in person.