I timed from character control to the SNAPSHOT logo appearing on the screen, but I'm happy to switch to entering the final door, it seems pretty easy to split there too.

Edit: It's been so long that I forgot why I originally did that, it was to mash through the final polaroid cutscene so the credits would play. But it was impossible to tell which input skipped the last one, so I just split on the first visual cue.

I tried to figure what would be best for srl racing. I start timing on hitting restart level after loading in first level from new game. End time is a bit weird. I just thought that walking into the ending is the last significant input (kinda consistent with other 'srl timing' i guess). In the 38:05 i uploaded to youtube, I stopped on the logo. Both make sense to me and i really don't care too much.