Even if in certain case like a shiel your edge will be pusing his edge down. there is no full force opposition as teh sword travel more of less the same direction
I can not believe the amount of time waisted on full force edge to edge block discution.
Modern science easily demonstrate that I suck structurally
And the manual clearly show what to when that happens (i.e. the “bad” versetzen) to hit that doing so sucks big time.
Of course it probably happens as it happens now days when we spare, but really it is a no brainer.