I used this with Sherwin Williams Duration paint which is a thick outdoor grade acrylic paint. It has the consistency of a syrup and dries very quickly. I watered the paint down a little with water and it worked even better.
.17 was required to spray a fence using heavy and thick latex paint - this got the job done. If you are satisfied with your Graco sprayer, then this will be no different. The tip is a handy tools to have in your bag - especially since you cant run to Home Depot and grab one (they don't stock it anymore in their stores).