2high,
I think that the Boeing fraternity tend to use the "overspeed" term .. descriptive as the actual V2 scheduled exceeds the minimun permissible V2. "Improved Performance" tends to find favour with the Airbus mob. Again, quite descriptive as the main reason for doing it is to gain an improvement in initial climb gradient.
A long time since I have looked at a Fokker AFM but my hazy recollection is that they also inclined to the overspeed term.
Doesn't matter one iota which term you prefer ..
[ 12 January 2002: Message edited by: john_tullamarine ]</p>