I guess the questions are 1. when to start measuring and 2. is there a demand? (I would like to run...)
Red Streamer: Starts at the start of the full game (or Mario is stuck in the tree), ends when the fanfare thing ends (all streamers end this way). I've already tried.
Other Streamer: Since it is meaningless to create a category unless a certain number of records are submitted, I think it is better to start measurement at a time when it is easy to retry. I will refer you to past posts, I think the following, for example, would make it less stressful and more challenging to retry, since you can start with the main sections of the run: Blue Streamer: Timing starts when you enter the tram (or get out of the tram) Yellow Streamer: Timing starts when you set sail with Bobby for the first time Purple Streamer: Timing starts when you set sail with T. Ode for the first time Green Streamer: Timing starts when entering the pillar of light that allows you to reach Shangri-Spa Olly: Timing starts when entering Bowser's Airship and ends when closing the final text box, from Luigi
Boss Rush: Various options are possible, but I think it would be better to simplify the measurement rules and make it easier to challenge.
The simplest way is to not include Olly, fix the order, and measure the time between the "EV" selection and the darkening after the "beetle" is destroyed. (It seems that some players have run with this rule in the past. Apparently it takes about 50 minutes.)
As for the auto-save, I don't think you need to worry about it when measuring, as I think it will fill in a good record when you practice. ...... Still, there is a possibility of the loss, though.
It may depend on the vote on whether or not to include Olly, whether or not to refer to in-game time, etc.
Red streamer% is the most realistic in streamer categories because the start and end timing is obvious, the rules are easy to define, and there is little data preparation required for execution. It takes about an hour and is easy to challenge. There are also difficult optimizations and "Overook Tower Early," making this a challenging category for top players. Except that the tutorial part is a bit boring.
I believe that the existence of a category that is relatively easy to challenge (e.g. Bobby death% , streamer IL's, or other categories discussed in past threads) will energize the community and result in a better Any% and 100% charts.
どうでしょうか...? 長い間、結論が出ていないテーマなので、難しいかもしれませんが......