Non-Standard Stance and Parry Number 1

I have just realized that one principle I have relied on is wrong.

I have viewed the thrust behind my opponent's blade and above their sword arm as being as perfect as a thrust can be. It's in a place where I thought it was impossible to parry it out of the way.

But.

A false-edge parry from a stance with your elbow far out and your hand low CAN push that into the little nook under your armpit, if you're careful about making sure to parry far enough. This is improved by having your blade pointing to your left, and approaching in a spiral.

Now, the work is to figure out the correct way to deal with it, and how to characterize the correct way to deal with it into a universal principle.

Edit: Welp, nothing I tried tonight really worked.