Walkthroughs for custom maps.

What prevents you from using it? It significantly speeds up the process. You can complete 4-5k rounds in an hour.

I don't use any tools for principled reasons (or sheer stubbornness, depending on how you look at it). I've heard that Chinese players have a similar quirk.

I'm not sure about speeding up the process. In speed-click mode, there's a much higher chance of messing up.