If your WTG and XTG passes are not efficient, the ATG will likely not go well. The ATG should be removing just the bare minimum of stubble. Also, when I do ATG, the spine of the blade is touching, to almost touching my skin. The angle is very steep and I stretch my skin to the extreme. I advise you not to do an ATG until you have mastered the sawing motion with your WTG and XTG passes. In fact, once you master that, you may find ATG to be unnecessary. Happy shaves.