how do you guys spend your stars? do you just wait until 2500 and then do the tenfold gacha or do you save up past 2500 and wait for gachas with cards you really like?

i feel like i'm kind of slowing down on star farming, so i'm wondering if i should save up past 2500 now :/

i've SSed pretty much all the songs i can, working on FCing everything right now (need to practice more on harder songs), so what i think i'm gonna focus on is unlocking all the memorial episodes but even then getting enough of the gems can feel a bit slow sometimes