Taking some design inititive here to start a discussion, I think we should not make this a setting and instead make it the default on all seeds to remove the ever-increasing headache that is big poe softlock logic.

For those unaware, when shuffling interior or overworld entrances, there's a check in entrance validation to make sure that the player can empty big poe bottles with no items. This is to account for someone possibly going out of logic to kill big poes and fill thier bottles, but then need the bottles to get something that gives them big poe access. This cannot be handled with normal logic because it is accounting for illogical actions. This check has gotten more complex with overworld locks however, will get get even more complex with NPC souls, because they also stop handing in big poe bottles even in vanilla. Issues with this are the cause of the Inteior shuffle fails in 9.0 and have result in some very wierd logic where guard house key is sometimes needed to use bottles.

Rarther than add a setting that would force us to maintain that, I believe that it would be better to force this the default because if implemented as so, it should have minimal effect on practical gameplay:

• The player will, when talking with a big poe after it's dropped, automatically catch it if they have an empty bottle, but it will not fill the bottle, instead immediatly granting 100 poe points. This preserves the need for an emptyable bottle to complete the check.
• Once the player has 1000 poe points, they can speak to the poe merchant for the check, even if they haven't got a big poe to show them. This preserves the need to find the poe merchant and have any overworld keys blocking them in order to get the check.
• As currently implemented, needing fewer big poes to hand in is done by giving the player initial poe points, except it should be possible to need 0, to avoid a headache with converting the big poe index to the actual number of big poes required.
• Big poe bottles placed as checks in generation should not be affected, they should still need to be shown to poe merchant to empty, to preserve the mechanical difference between them and different bottle.
• The big poe check is removed from entrance validation, as it is no longer needed as the player cannot actually fill bottles with big poes.

With this implementation, the only gameplay difference between the new system and the old is that they player does not need to run laps between hyrule field and the poe merchant, which most would consider QoL, and I consider that preferable to the esoteric bottle logic that is caused by the threat of big poe softlocks.

Pretty simple conflicts to resolve, looks like, and I'll look at pushing this through.