Hi19 you are really great optimizer in these kind of levels. For me, the key way to save 2 is so difficult to see. I was stuck at 64 for quite long.
Somehow I am wondering if a chart showing my own steps history in a certain level would be an attractive feature, so I can know how much progress I have made.
Very well designed, was 2 off one month ago, at the end finally had the aha moment. In my case, my 2 off was because I used an inefficient approach towards the finish.