Grainy Manga Studio Pencils: work-around C

A) Pattern Brushes            B) Bitmap           C) Convert to Tone

Continuing my experiments from my previous post, I stumbled upon a third work-around to simulate grainy pencils in Manga Studio (and probably the best). What I tried this time was drawing on a raster layer with the Color Reduction Method set to Convert to Tone on Noise. Why is this the best? —because this way saves the steps of applying any filters (B) and of setting rulers for any necessary shapes (A).