RapidCoffee wrote:But the 15 degree angled portafilters are designed for level tamping on a flat surface with a double spout:

Odd. mine end up with the pointy bits on the handle side of the bottom, and I'd prefer them on the far side, for better balance (the thing wants to tip if I let go with the tamper still in the basket). Did you mod yours, or did it just end up that way? Oh, and is yours really flat? Mine is close, but it still droops a bit the far end.