It is "interesting" to watch Vmcg testing ... departure is VERY speed critical and it can go from nice to nasty in the space of several knots for the Vef speed ... one of these days I will dig out some long lens videos and post them somewhere with a link from PPRuNe ... very much a case of now you see it ... now you don't ...
Before playing with this I was a lip service to V1 min man .... took about two takeoffs watched through the video in real time to convince me that I had missed the point along the way somewhere ... instant conservative convert.
Those who play with takeoffs which are near Vmcg limited in a strong crosswind are far, far braver than I ..