My hair grows from right to left but a small patch on my left side grows from left to right. My first pass is north to south, followed by a second pass south to north (so both are basically XTG). I then do a touch up pass in a slanted direction (45 degree, like this: /\). Don't know if that makes sense but it gives me a DFS with minimal irritation. I figure it's like an ATG pass, but just not as aggressive..