White Colored Pencil tests

By request, I gathered some of my white colored pencils and tested them for smoothness on a Cachet Earthbound kraft paper and the black paper pages of a blank glitter book.
Derwent Drawing Chinese White 72 pencil sketching sample. Featuring the widest waxy drawing core felt quite smooth on the Cachet black glitter paper.
Derwent Pastel Chinese White 72B pencil sketching sample. Slightly scratchy feel like typical pastel pencils. Blunted quickly. Bold white marks require fixing.
Derwent Coloursoft white C720 pencil sketching sample. Thicker barrel pencil might not fit on standard sharpeners. Smooth lay down.
Faber Castell Albrecht Durer white 8200-101 watercolor pencil sketching sample. Smooth lay down with added advantage that the marks can be blended with a waterbrush. Out of all my colored pencils, this is the brand I carry in my sketching kit more frequently for its versatility and performance.
Prismacolor Premier Lightfast White LF138 pencil sketching sample. The pencil sharpened easily and retained its point well. Smooth lay down. Though pencil point tends to crumble under excessive pressure.Other than the Derwent Pastel pencil, all the white colored pencils tested felt reasonably smooth and stood out on the tinted support papers. Selecting one over the other could be mainly determined by price, availability of open stock, and the properties of the actual intended drawing support.