15 pounds may be a tad optimistic once everything but food fuel and water is considered. But for warm weather conditions somewhere in the neighborhood of 16 is a good possibility. I guess it also depends on what people consider part of base weight. For water and fuel do you count the containers as part of base weight or part of fuel and water weight. Clothing for comfortable weather I expect to be minimal beyond what I am wearing.

But one point is I don't want to obsess about shaving ounces and spending a fortune doing it. The gear I have is perfectly functional and in good condition. There are a couple of places I know I can cut a little weight but don't want to lay out any funds if I don't have to right now.