Started brushing on May 29, received 2 airdrops worth a total of 60U on June 9, achieved 240 points in 12 days, at this pace I can receive around 3 airdrops in 15 days, expected wear and tear is 60U, which means I've recouped yesterday's airdrop, next it depends on how many more I can receive, I heard there's a profit of 500U in a month, let's see if I can reach the average line, purely manual brushing for 3 minutes a day, 15 points.