which brush, 169 or 188?

[juicyaddict]

I am new to MAC and just bought the 169 brush from the Icon collection. I have been reading about how good the 187 brush is, but I am looking for a brush more for blush, contouring, and light MSF (I just bought Shimpagne) application. I can't really afford to buy another brush now, so do you think the 188 is a better one than the 169? Also how does the 169 compare to the regular 168 brush? Also, I haven't returned any items to MAC yet, can they easily do an exchange (at any MAC counter) if I ever decide to exchange my 169 with the 188? Any help will be great!

[Juneplum]

moved to recs