I thought to myself well done that man, there's no point trying to get your head around a subject you know fine well is way over it, which is pretty much how I feel about this thread.
So true. Almost all that is needed is to watch the ASI (and act on what it's telling you!) and keep the ball in the middle. Of course planning needs to take cross-winds into account, just as sailing needs to take the tide or current into account, and landing (or rounding bouys) is where you have the complication that you are moving in one frame of reference but going to a target in another. Still air / no tide or current = not that hard. Blustery conditions / strong tide = another kettle of fish.