I am sick and tired of idiots such as Genghis, so this is the last time I read or post here in PPRuNe, have a nice life.
I note that others have taken you to task over this comment .. surely you were being somewhat tongue-in-cheek ?
If not, it's not too difficult to divine who Genghis is and what his considerable background entails ... not a chap to whom one might apply your comment, methinks ..
There was a query re upgrading crosswind figures and I don't think I saw a response ? Certainly no reason why the OEM data can't be revisited if required .. we have done so on a number of occasions in Oz .. the only time we frightened ourselves was with the small Rockwell singles .. as I recall they have an aileron/rudder interconnect which does provide a real limit not very many knots above the OEM figure ..