right now I like the progression in it. Sure the first time you need 25 pheromon sacks (20 days) to access the final boss. After that you can do it at your own pace.

-Either take another 3 week to pop it: costs zero gil, but it costs you time. You will have all the boons if you rotate your books among the party, including TH+2 and bonus to spoil. The NM will also be a joke due to the DD boons (higher level of DA, mvt speed, 10/tic regain or so, 20/tic refresh...).

-either only farm some boons (1 week): TH, bonus to spoil[doing that also gives yo u refresh and regain].

-either pop it every day: nobody knows wtf bonus to spoil does anyway. He is a joke with embrava or a bard and regen V.