They're just turning while the weapon is in windup, the turn cap applies when the weapon is in release. And that time when they turned a full 360 they did a feint, this extended the windup allowing them to turn more.
#Turn cap and spinning
desert timber
Spinning has some uses but in this specific example it was mostly used as a scare tactic, that didn't work on you apparently 
stone cobalt
desert timber
I believe you would still need a bit higher sensitivity to do this
I think either/or
arctic totem
if you want help or still need it i'll be more than happy to
join a server
come to 840
8540*
whats ur in game name?
shit my bad you're eu, join an eu server and lemme know which one
i can play on eu alright
i'm in 1982
its eu duels
the last 4 digits are 1982
its hard since ur console
i typed a novel in chaty
if you do the spin out of counter or riposte the swing is a lot faster, which makes yhour spin easier to land
especially if you start spinning before you catch the counter, cuz then you can feint into another attack like stab or overhead
if you feint after countering or catching a riposte, theres a short time where your turn cap is back to the normal turn cap when you're not swinging
in that video you posted thats why that guy was able to do that
ill try an replicate it, but its[ really not a good move tbh, if youre gonna spin, just try to hit with it
idek mkb worked on console
ur good i'm kinda faded rn
its 6 am in usa
lol
that was good dude@!
i knew a faster weapon would make it easier
its deadly with LS
that spin feint u dude
my boy lk DVS does that shit to me all time, he'll counter a slash and wait til the last min to feint into antoher slash and by that time he's positioned right next to me
accell's out of spins are what those are
and they looks sick
warclub spins looks dumb af i wanted to show you