Sync Marker for 4 legged Characters?

Hi,

I wonder how to set up sync markers for the Quadrupeds.
I tried adding them for every leg - just like what we do for 2 leg characters, but seems not working nicely.
Also searched if there is any reference or example but couldn’t find out.

If this setup should work as we expected, plz let me know so I can guess something got wrong on the otrher side.

Thanks,