This modding system do not mess with game folders such as abdata and don’t make id conflicts at all, making HSResolveMoreSlotID obsolete. Speaking on mods, modding structure is pretty different in Honey Select 2 since it uses the softmod method, differently from Honey Select 1 that used the HardMod method. Graphics are more realistic, character models were improved, skins have natively skin transmission light, physics was updated and the modding system changed drastically, meaning that nothing from Honey Select 1 works on Honey Select 2, nor cards, scenes, clothes, items, mods or plugins.
In technical side they are hugely different.