Let me say from the get-go I'm happy to retime all submissions here, both mine and the others, we just need a standard that can be agreed on.
I'll explain all methods at the example of this run:
Method 1: Autosplitter. Probably reliable and consistent, but hacked together by me, also only splits AFTER hitting enter on the "The chapter is finished" prompt, and splits EARLY on chapter select. This is what we usually use for splitting in runs, but would be a disadvantage for people who don't want to use it/ when it breaks. I do NOT recommend this method. Would time the above run to 42.490
All following methods are seen together with the regular starting frame from chapter select.
Method 2: Last frame before the "The chapter is finished" prompt. Unambiguous, always exists, never up to interpretation. I recommend this method. Would time the above run to 40.883. (Thanks to Bernie for the correction from "First frame of" to "Last frame before")
Method 3: Proper Last input: The last input (usually a cutscene skip) before the prompt. Not sure if all chapters end in cutscene, could be ambiguous. I'm not too keen on this method but can get on board with it. Would time the run to 40.867
Method 4: Technical last input: The last input after which only cutscenes are played. This is based on the timing for the end of the game. We split on the last character input. Again, not keen but can get on board. Would retime the run to 40.783
Let me know which of these you prefer and why, or if you have any other. If there's no feedback I'll choose option 2
I think method 2 is the fairest for lack of a better term. Although ch 7 solo would still need to be last input I think.
For the sake of simplicity, I'm for the auto splitter for full runs. For IL runs, method 2 makes sense. However, it will obviously give the impression that IL runs are MUCH faster than they should be
The autosplitters are good for comparisons of segments and runs, and I encourage to use them, I'm still using them for IL runs as well. But the time on the leaderboards will be retimed either way.