RE: Cross wind landing teqniques
You are quite right about the slip when cross controlling to touchdown, Nigel.
My crab comment was to emphasize the difference between a crab and a slip. When on final, you can fly the model in a crab into the wind with out cross controlling, until say, you cross the end of the runway. The crab is just the heading difference between the track you want to fly and the wind correction you must keep to fly the track. We always do this when flying the sequence, after the turn-around we just turn a little into the wind so the model doesn't keep drifting towards us. We usually don't hold the rudder into the wind the whole time. On final approach we can do the same thing, and then do the cross control, wing down slip at a moment that makes us comfortable. The whole final doesn't need to flown in a slip. But you can if you want to, I suppose.
Hope this helps.
Chris...