did you get the achievement/trophy? i thought about it for a second and then thought to myself, "deary me, that sounds impossible". still,. it has always annoyed me i don't have 100% on braid.
I have it. :)
Took me a few tries, but not giving up is the key. The worst part of the speedrunning is the last damn chapter before 1. The one where you have to use Tim's engagement ring to slowdown time. Easily twenty unavoidable minutes are sunk there.