BillyWAR's advanced tutorial is extremely high quality and one of the best tutorials for RTABC, however the segment on divegrinding is slightly misleading, so I decided to make this quick video to clear up some stuff about it. Note that divegrinding is rarely used RTA because it requires precise angles and rapidly alternating the joystick between those angles. There are some slopes in the game where you can just hold one direction, and those grinds have been done RTA (Gray slope at the top of TTM is one example, the one right before the grassy leaf thing). I also should note that the right side of the line I drew is the floor, and the left side is the air.