Yes that clip has been known for years. There is no way to get it consistently because nothing in that area allows you to manipulate your subpixels, so it will always be random.
Starting to learn this now that I'm basically finished with Earthworm Jim. So far I haven't learned any routes yet, mainly focusing on learning the glitches to start with. Hopefully I'll be able to start doing runs after I come back from SGDQ.