I used to use a 187 for my Studio Fix Fluid, but once I got the 109 I decided to try it out for my SFF (because my MA used it for the foundation around my nose and cheeks and it looked airbrushed)
Ever since trying the 109 for foundation, thats all I like to use. Nothing covers my scars and bumps better than the 109. It doesnt make my face look streaky, it doesnt shed on my face (maybe a couple hairs) and nothing beats how flawless my skin looks.
I dont like how small it is, and I dont like that I need 2 of them (one for foundation, one for blush) But Im open to other brushes, I may look at the one Misschievious recommended...
For now, Im gonna keep using my 109