I got the chance to test/try the cool ADDAC 107 - Acid Test
ACID Source
https://www.addacsystem.com/en/products/modules/addac100-series/addac107
Looks like a lot of fun :)
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.
it is!