Rundown: 1.3 physical loads are around 50 seconds faster than 1.0 physical loads, and vise versa with digital. 1.3 digital loads save 11.2 seconds iirc over 1.3 physical loads over the course of an any% speedrun. I wouldn't suggest getting digital if it is hard for you to get it until like, almost sub hour level. Me and multiple others are in the 1:01 range and still don't have digital. It is not required in anyway, shape, or form to run the game at a high level.
1.3 loads are like 50 seconds faster than 1.0 loads. Also Digital saves around 11 seconds over the course of an entire any% speedrun.
Interesting concept though the category would mostly the same as darker side due to the fact that 500 moons are required, actually I think it would be the exact same as darker side except you just do the sphinx in darker side. IDK seems like a stretch to get a category
This trick is definitely not going "under the radar" but is just so hard and inconsistent to the point where I can't really be used in runs yet. There are still better time saves than this that are much easier and not so late into the run. The Snow Kingdom that PsioNick has gotten does indeed use it though, so far it is only BTT and IL viable.