I particularly like the advice of not going against the grain early in your wet shaving career and in my case, this was going against the grain on the neck. My neck would get so irritated. By going with the grain on the neck, my shaving has become much more enjoyable, less painful, and still DFS results!
There are places where against the grain is just asking for problems. Each of us has those places, and besides, it not like you can't achieve a good result and stay WTG and XTG.
Going ATG on my neck, submandibular, and cheeks are a cake walk. Try that in my chin and moustache area is cruising for a bruising.