Damn, wish I knew little sooner!
Already at work. I should stay 8 hours here, but I'll try disappear after 6
Once I get home I'll be available as long as needed...
The code might need more work from me, so no rush. I didn't have time to test it much.
Ah, okay

Hopefully I'll can go home in hour or two...
whow!
Looks like you found something!!!
edit: yeah, you found the right one!!!!!
Can you make this tunable for me?
Brilliant job!
It is beautiful how it remains momentum now, but not gaining that ridiculous top speed.
I'll upload vid for ya!
Now let me see, how it works for AI.
It works for AI!

Here is the vid
https://www.youtube.com/watch?v=C3mE0FmsZCQ
That RS glitch happens without any mods and without even pressing LT. It looks like they didn't include movement animations for the legs when using RT. Am I correct? May not be a bug, but rather a missing feature.
You should be able to use the last code with others.
What's the next movement value I should look for?
That's exactly correct how you describe it. Plus when you trigger this RS animation (by moving RS to sides) you'll start to skate little faster, which in the real world would be opposite.
But it's not that important as the other fixes. because AI doesn't abuse it. So if it's not a quick/easy fix, we might probably leave this one as is for now.
Okay, I would look at few of the animations separately now, if you agree.
animation
1) "hop" accel without the puck
So here is our infamous accel animation again

In this vid, it is already little slowed down, with that 1st code. This particular animation just needs to be slowed down much more, but I can do that because out 1st code affects many other things also, which are already corrected enough.
So it would be great if you can find this animation only.
https://www.youtube.com/watch?v=i1BzG5fpgtM