Think you set the beads first with those if coving stopping I tend to use board edge beads looks nearly the same and the beads are cheaperWhy would you do that?
Also I've heard them used for overboards to keep the coving etc, does that mean you just stop the board shy of the coving?
So you'd tack the beads up and board up to them, then the skim brings it flush to top of bead?