http://gph.is/2iAKKat
I rarely use a katana. Trying it out this time to see if I can apply the tip power technique on it to defeat the longer, heavier grosse messer.

http://gph.is/2iAKdW6
Tip power x 4

In case someone did not get it as those in other forum, tip = foible. Usually it's referred as weak. Using foible to manipulate the heavier and longer sword's base, the forte, to create opening, is not what people usually would do or manage to do. The gif show just that, using the weak against the strong and still breakthrough it.