tubby linton,
Did a four-sector day in foggy conditions back in the early 80s. I can't remember the details, but it was LHR-GLA-LHR-GLA-LHR. Each airfield was on-limits (75m? - so long ago), and each initial approach that day resulted in a GA from decision height.
Bearing in mind that at DH the aircraft's RoD was almost nil (we were well into the flare), when power was applied for the go-around the thing went up like a homesick angel, particularly as the fuel load was light.
Impressive. Not as impressive as the 757, but good enough. I certainly felt very safe in the Gripper in those challenging conditions, and whilst going home totally knackered that day, the whole exercise went like clockwork.