Power bricks should only be allowed if they are unlocked and purchased in game. They can't be unlocked in a previous run and then used to go through the levels. any% is generally defined as from a clean file (which I think we do anyway?). Is there any timings to support it actually being faster? If unbanning them doesn't actually lead to any route changes, then you could "soft unban" them just for the sake of not having arbitrary restrictions. I think it's only interesting if it would actually impact the route.