I had the pleasure(!) of flying the last Halifax (now at YAM Elvington). Actually, I should say part of the last Halifax, as a Chinook usl from a crofters' back garden near Stornoway. It flew like a pig and probably did the journey the other way on a horse drawn cart quicker.
But it would be nice to see another 4-piston in the UK again. Come on WL790 where are you?