Yeah wirbelstrum, aileron is used to maintain centreline when decrabbed and maintain wings level but it isn't a die hard rule willy nilly. And there is less than no need up to 25kts crosswind to use aileron into wind on T/O from my experience - and that is what we are trained on airbus. Anything more than 1/3 side stick gives spoiler deployment and then you are defeating the point. Power against brakes is a fundamental no no. You clearly have far more experience than me as does alycidon and I'm not trying to be a cocky **** but with a lower experience the rules and SOPs are the safety net. And they work. As an FO we can't play with our train set, it's the captains and so we need to be predictable to keep a happy atmosphere!