I think you should do it depend on the chapter and arc. Like keep build up and boring stuffs in shorter chapters. Other than that keep doing what you doing with the fun stuff.
Do what you want. If you want to keep them as they are then do so. If not they split them up into part 1 & 2, and have one come out either on Monday, Wednesday, and Friday, that way it can give you time to review each one along with the comments