Not sure how I missed this thread when it was new! Gotta do better keeping up! Did this get into the "Tips and Tricks" thread? This needs to be put into the Notable Thread Index!
I made a modification to mine as well. I will have to get some pictures up of mine. Less fine tool work!
I took an industrial hose barb, like what they make air hoses up in a factory, 3/8"NPT to 3/8" ID tubing, drilled a hole in the cup and threaded it in. Once in, I took some silicone and made a "false bottom" that sloped on all sides to the barb, made it like a funnel. I think I will have to look into making a plate though. Like the one that they sell for $25!
Bob has a good fix. Thanks for sharing!