Good paper.
The Tang paper does not mention any "current flow" inside the filament. Without supporting citations this "current flow" is a figment of your imagination.
No, it's not a figment of my imagination. Birkeland and Alfven wrote all about it, and I can see it in those SDO images. For purpose of "prediction" however it looks like I will have to limit my categorization to "brightening" for the time being.
I have a new module out for my software in a "beta" mode and there are still parts of it I'm finishing this month. It's been time consuming to say the least. You guys will be the last two human beings that STILL reject an electric sun theory even after it's long been demonstrated to be true.

You're destined to be the ultimate "flat Earthers" in terms of your scientific credibility.

You can wait while I finish up what I'm working on.
I'm going to take this conversation *VERY SLOWLY* so that you have no "wiggle room", no place for "denial' to kick in, nothing left to chance. As you all accept each and every "category" of filament eruption and filament types, *THEN* I'll be happy to discuss numbers. Until then there is no point in just throwing out the entire methodology in one fell swoop. It would be pointless because you'd have too many ways to "complain", too many distractions to fixate on, and too much wiggle room.
Yes or no do all three of you agree upon the fact that there are at least two distinct categories of "filament eruptions"? Do you agree or disagree that filaments can erupt up or down?
All I need from the three of you to continue this discussion is for you to all agree on the following:
A) Filament eruptions come in at least two types, a "classic" (full filament) type, and a "partial' eruption, where 'some' material is ejected.
B) Filament eruptions can erupt up or down.
C) Filament eruptions are often preceded or associated with a "brightening process".
When we have agreement on those items, we will continue the quantification/categorization process.