Hey guys, I've been waiting almost a week for a run to be validated, so I don't want to record another one. Instead, I want to try the category extensions. Which one would you recommend I start with?

Hey! The mods are humans with lives outside of verifying runs. Don't hesitate to continue to improve your PB just because it hasn't been posted on the leaderboards yet. They will get to it eventually.

Some of my favorites: All Switches, All Star Block 1-Ups, 22 Star, 17 Message Blocks, Feed the Yoshi, Switch the Yoshi, Beat Special World, Maximum Wings, even 11 Exit No Coins—a lot of the extension categories have their own interesting routes and tricks. For some of them, it's an achievement just to get a time on the board. If you're coming from 11 Exit No Cape, maybe try out All Switches, No Cape.