I'm not the originator of this thought - I may even have seen it on pprune!
Its worth realising that all this discussion about crabbed vs slipping approaches is simply about WHEN you make the transition from crab to wing down. Look at it this way - when in the cruise we fly with the wings level compensating for the cross wind drift. In other words, crabbing. On landing, whatever we've done down the approach, if there is a cross wind then a good landing will involve some wing down with the controls crossed.
So somewhere in there we have made the transition from crabbing to wing down with crossed controls. On base leg? On long final? Half way down the final approach? Just before round-out? After round-out? It doesn't matter - do what works for you and the aeroplane.