Does the aerial turnaround conserve momentum in SMW too?
Not as far as I know, but I'm not an expert. It's basically an "accident" due to the way I implemented things, but I ended up as a feature.
I'm impressed you found the feather! You're the first one to find it, as far as I know. And I agree with the nitpick 100%, especially above the waterfall.
Thank you for playing!
Edit: I just watched your video. The way you started playing music as the speedrun started was very hype; really good editing overall. Your run is also about 50 seconds faster than my best, so probably world record?