Here is an example of chart generated from the app:
18┼╮
17┤│
15┤╰╮
14┤ │ ╭╮╭╮
12┤ ╰──╯│││
10┤ ╰╯╰╮
8,8┤ │ ╭╮ ╭╴
7,2┤ │ ╭─╮╭╯╰╮│
5,6┤ ╰╮╭╯ ││ ││
4┤ ││ ╰╯ ╰╯
2,5┼ ╰╯
Would be happy to answer your questions & suggestions!