I'm looking into getting one of the "My K-Cup" filters but I could see the design flaw. There is filter material on the side of the filter, where the water could simply flow over the coffee, and go right down the sides. Larger coffee makers don't have this sort of problem because the filter is so large, and the water is deposited directly in the middle of the grounds. Solution: Block off the sides of the filter. There might be problems like the water won't flow fast enough and will overflow, but thats a risk you take. There are also a few alternatives to the My K-Cup you might want to look into.