That is exactly why I liked the 15 slots (for my swing trainer). The umbrella holder is perfect for my alignment sticks; it is a full sleeve and I don’t carry an umbrella in AZ unless there is rain in the forecast. I only have half my clubs in the bag because the others are in my Cobra stand bag to go to the range.Really liking this design of the dividers. 15 dividers would be good since I keep my alignment sticks and swing trainers in one of my dividers now.