Corkscrew
I'm not of war vintage but I've done a bit of night flying in my time. I would not like to follow a corkscrewing bomber under the circumstances described. I would think it would be extremely easy for a Spitfire to follow a Lancaster in daylight exercise conditions. I suppose that in the stress of combat, at night, a Nightfighter pilot would not want to follow a Lanc bristling with machine guns into the gloop. Best to go and find one that is unaware of my presence. Better than getting disorientated and losing control or even shot down. ...I would guess!