Just googled Superfish and they're still going strong in and around surrey and they still fry in beef dripping. well, well well. ;D
Yep, I've got one near me and I've had fish and chips from them - pretty good.
I'm not really a fish and chips person to be honest, although I do enjoy them now and again, I'm not that passionate about them so wouldn't know good chips from bad! :

As far as I understand it, dripping comes from beef and lard from rendered pork fat, yes?
I've just recently bought some lard strangely enough, for some Majorca Ensamaida's I'm going to be making, they're just divine!