A recurring theme, I'm sure, but this image from this BST thread by Nitrosnail (thanks to him for the picture) shows an insert from pre-fix Simpson CH1 best, illustrating paintbrush YES, circles NO. Personally, I face lather, and find paintbrush strokes to be damn near worthless for all but initially transferring soap to the face, then smoothing out any mounds of lather after creating them with circular motions. Is there any real merit to the "circles will damage your brush" claims? Even if there is... I may just destroy my brushes. I cannot make lather with strictly paintbrush strokes