The 109 is really good for blush and contour.
I tried it with my studio sculpt NC20 and it made me look orange at first, but it settles in and then its lovely looking.
Its definitely good at achieving the full coverage look and its a nice brush to apply your make up.
It gets into the small areas of your face like your nose and under your eyes.
I really like this brush it gives great results, my parents thought i wasn't wearing any make up its great (: