I just picked up 2 5ft sections of 6" PVC pipe to make some homemade deer feeders to attract some more attention to my deer cams. Here is my question: I was told to cut a wedge-shaped portion out of the bottom of the pipe that goes on the ground to let the corn flow out. That makes sense, however, how big of a wedge shape do I need to cut? 2"? 3"? 4"? across? I thought about using a 90* elbow instead, but I thought this might let too much out. Have any suggestions?