I'm also in two minds about the Moonphase, though I think it takes a bit of learning and some careful tweaking to get the best out of it. It may get sold if I buy another Stereo filter, I do use my 3 other mono filters way more than the Moonphase and can make interesting Stereo (Dual Mono) effects with 2 mono filters. All that said, I sort of think if I did sell the Moonphase I would immediately find a use for it ;-)

Enjoy your spare HP, don't rush to fill every last space, this is not like filling sticker books. Resist the urge to 'complete' your rack, its never complete so just relax.

https://youtube.com/@wishbonebrewery