@Maarionete You are the best, thanks alot!

Hello everyone! Im speedrunning dark souls (PtD) :) In Queuekyoo's run (and many alike) we see him performing a clip out of the Firelink shrine elevator. After which he walks a bit on a ledge, jumps off and clips directly into quelaag's domain, skipping blighttown. My question: How do you perform this? I can't seem to find any guides or information on this trick. If anyone know, please share your wisdom! ~Johnjhini