Pretty much stopped doing anything for vanilla NW
As for the cav helmets thing. What you're talking about is most likely helmets that have that tail thing at the back like the French dragoon which is animated so has its own rigging, unlike other hats including heavy cav helmets like the carabineers and British blue horse guards guys.
Unrigged hats and rigged hats are positioned in a different place to each other.
Unrigged hat location relative to body
rigged hat location relative to body
So what happend most likely the hat you put in was in the unrigged position and therefore didnt show up. Same happaned to me on my fist attempt at the Scots Greys.
is there a way that your charge annimation only comes on a certain speed or when you press a button ?
The charging animation should only take effect at medium to top speed. Or atleast it did when i last used it.