15 seconds on/off x 10 with 1 extra

I did 11 just because I was having fun. Lost my bottle during one of them and too more than 15 seconds to retrieve and toss off the road. Averages: 596, 635, 650, 630, 625, 604, 633, 615, 623, 592, 642. Comparison to last September when we did this with a few minutes between.