Lucky me! I was able to solve this a little quicker than the average. I was stuck at 4 steps for a little while, but then once I got to 2 step off I was quickly able to optimize the last bit. Very fun! It made me feel clever.
Interesting. Struggled on it at first, then went to do the others. Solved the third a week later, came back to this, and solved it in just a couple tries.