Pitwalking

Pitwalking in LA/DX can only be used to cross one-pit gaps downwards. Pitwalking specifically refers to this act without the use of menu buffering, otherwise it is called pit clipping. Pitwalking is very rarely used as it only works 1/8th of the time when done perfectly. Likewise, there is only one place where it is known to be useful

How to perform

Line Link up like so (only his horizontal position matters):

Then, hold down. If you pressed down on one of the two frames that it works, he will clear the gap entirely, skipping a small section on the way to D1.