I'm getting somewhere! 15.0g in -> ~35 out. I went with a way finer grind setting 1.1 on the JX pro. Could definitely hear the machine struggling but the shot is tasting
Philips Saeco Gaggia coffee machine water tank Poemia HD8423 Grangaggia SIN - AliExpress
User manual Philips Saeco Poemia HD8425 (English - 156 pages)