Just out of interest, Big Airways are just introducing a 'new' 180 degree turn for the 747's. Instead of keeping the beast rolling (slowly!) we now bring it to a halt, wack on max nosewheel steering & use just the 2 outboards to swing it round.
I'm not going to get involved in the pro's & cons (it's the sort of discussion you can only sensibly have after several beers
) but I'd be interested to know how the other airlines teach it.