For a stock tank it works as designed. We are talking about making a aftermarket tank with known issues work. Because obviously if you take time to read any of these threads the stock set up is not working with this tank and people are not being able to utilize the extra gallon's out of this tank. So yes the sump is a great idea because gravity works and will continue to work. Not to mention if someone is tuned and has larger injectors blah blah blah they can take advantage of the larger outlet than the factory draw straw to use larger fuel lines.