I used a gradual hill near our house for these (Heekin, from LeBlond to the park entrance) cadence in the mid 90's while power was 554, 527, 513, 515, 529, 533, 519, 529, 508, 507 for a 523 avg, and 346 NP for the ride. Not that the NP means much, just curious. These were tough! Super winded after the first 5 and took about another 30 seconds between.