Normally you give as much roll as needed to keep the wings level. Only a littlebit is normally needed, though. Like 1 or 2 units should do the trick.
I as well came from an operator where this was prohibited and you are skidding down the runway in heavy x-wind. Another operator tells me the opposite, and the take-offs seem to be more controlled. Performance is being used as the reason why not to do it, but it is not really a factor.
Try it in the sim next time.
