15x30 seconds, x 2 sets

Haven't done these in a while. Took me a few to get the cadence down that would get the best power.: 561, 562, 621, 561, 603, 578, 592, 626, 568, 576, 599, 546 (car caused me to have a slow start), and 592 in the first set for a 586 avg;  590, 552, 597, 593, 598, 595, 569, 572, 579, 538 ( had to stop after this one for a minute....getting dizzy), 596, 539, 573, 584, 602 in the second set for  578 avg. Used the course at Ault Park.