Experimenting with Lane Browns charcoal brushes more for procreate on ipadpro. I am still trying to figure what feel I like drawing with on there. Recently I bought some smaller metal tips almost like ball point pen or sharpened pencil. I use that on a rough surface screen protector. It annoyed me that the rough surface was chewing up my regular apple pencil tips. I liked drawing on the glass surface but the pencil was causing a bunch of micro scratches.