I've noticed the 'Peach file' option under timing methods on the submissions page. I'm guessing that's a file with 0 shines that saves on airstrip immediately after Peach talks to Mario, but I was wondering what I should set the timer to so I can accommodate for the skipped cutscene.

2:30.20 (The offsets for Peach File and Hacked File can be found in the Game Rules tab on the rules page.)

Ah okay, much appreciated. I must have missed those.