I shall watch with interest as the thread develops ..
A couple of points to note re Vmcg ..
(a) Vmcg is a bit of a vicious beast .. it sneaks up very rapidly and the aircraft can change from pussycat to tiger in the space of a few knots .. unless you have seen the situation, there is the risk that the pilot might be caught out ... unless you have your wits about you, one could find oneself in the grass without much delay or ceremony
I, for one, wouldn't be getting too close to the real Vmcg in a cavalier manner ..
(b) while the certification Vmcg is based on nil wind (the older BCARs used 7kt) - keep in mind, like many certification things, Vmcg is there to put a line in the sand - the realworld Vmcg is VERY dependent on crosswind .. increases in the range half kt/kt for twins to in excess of one kt/kt for quads is not atypical. Given a decent crosswind and a low weight ferry-type takeoff .. a failure on the "wrong" side can get super interesting.