when I had a lesser grinder, I compensated for the 'not fine enough' issue by using more coffee ... I used to cram is as much as possible, and sometimes it would choke the pump ... only sometimes! So if you cant grind fine enough, or if it's being ground for you, you could try using a bit more coffee still. Also, I heard about something called the 'staub tamp', where you kinda dig the edge of the tamp into the four corners of the basket ... North, South, East, and West, then give another firm level tamp to even it all out - it compensates for a tamp that's too small for the basket, by cramming in the coffee around the edges, so that there's no less dense areas there. Just another thought!
