OK, I've settled in on 60 grams for a full 10 cup pot.
There was a rattling inside the machine when I got it, so being me I pulled the bottom plate for a look-see. I found what looks like a plastic clip/spacer. I finally located the TV parts diagram, but this piece wasn't shown.
I wonder if TV just had extra crap laying about and decided it was easier to put it in this coffee maker than to toss it in the trash? Hey, don't laugh - haven't you ever heard of the auto-worker who hung a nut inside a door panel just to see how long it'd take a service technician to find it?
edited: Anyone else but Jim and I'd suspect someone of slipping something inside just to see how long it'd take me to find it?