1) As you note, the explanation of this tool needs to be more thorough. I can't really see what the results mean. Without that, the exercise lacks significance.
2) On the graph, I can't tell which line is which. I happened to choose an allocatiomn that has both lines starting at the identical point, so neiter one is "to the left".
3) It would be handy to have a key to automatically copy all entries from "Allocation One" into "Allocation 2", so users could have a starting point to vary from.
4) The data sets used are not indicated. Users will want to know if your data comes from 2000-2007 or 1911-2007
"Freedom begins when you tell Mrs. Grundy to go fly a kite." - R. Heinlein