Yes the sliders on the above, die stamped GM construction and voiding etc. mark them out as OR badges not officers and therefore not staff.
There’s also photographic evidence of badges from both dies shown being worn by R1DY troopers.
The same does not apply to officers badges nor do the voids follow the ORs arrangement. The badge you show I have seen two identical examples in Keith Hook’s collection as R1DY.
I’m told to differentiate from the ‘Gilded Staff’ a new pattern was approved circa 1917 shown here:
https://www.britishbadgeforum.com/fo...Devon+Yeomanry
Note the difference in the voiding around the lion and attachment points.