Looking for a brush that will give you the perfect light blush, picks up just the right amount of product and glides on your cheeks so gently you can barley feel it? I know I did for a long time. 
Sure my Sigma F40 gave me amazing, contoured cheeks and Ecotools blush brush natural complexion, but I wanted more. 
That perfect glow of lightly applied blush that makes your cheeks pop a little bit, enough to look fresh and gently contoured. 
And answer to all of the above is Real techniques Blush brush. If you never heard of Real techniques, it's owned by two sisters, makeup artists and YouTube gurus Samantha and Nick Chapman. 
These two ladies are not only incredible makeup artists, their line of brushes is one of the best on the market. Every single brush I tried from Real techniques was amazing, and the blush brush blow me away. 
Now I can do a perfect natural blush everyday, without a fear of wearing too much blush for daytime.