| All correct. It's to ensure that the blade bends correctly when it hits target, everyone does (or should do) it, and it's true for epee as well as foil.
It used to be that foil would generally have fairly distinct blade bends because bends are more permissible, but since the 1 cm rule foilists have been bending their blades a bit less. Some would say that this rule makes blades last less long and hits hurt more while causing ridiculous cards and doing nothing about the flick. |