When should timing start? I have timed from the first start press on the red logo screen, but perhaps the first visible frame of Peter in the first level?

yeah the start is weird... i clunk when i press start on the screen with hook and peter. if that makes since...

I get it. I'm 0.367 earlier than you in my splitting.

First in-game Pan frame may be most consistent. This would save 0.550 from my splitting, but then you don't have to nail the start presses.