I'm a custom interior designer and find that there are a lot of problems related to Ralph Lauren Paints. Quite frankly they're overrated and I can't understand why so many of my customers request them...other than the name. As for the stippling brush, try using a horse brush, I do. I find that the stiff bristles are just flexible enough to create a tight pattern, much like a wallpaper pattern, it is also larger than a stipple brush and covers more area. Other times I use a cement brush for a looser more flowing pattern.