Hi Doug, I would think that some accomplishments are rather in the past. Indeed, concerning pumping power, measurements on tests were carried out.
Ruppert 2012 pdf is available on the link below:
https://repository.tudelft.nl/islandora/object/uuid%3A56f1aef6-f337-4224-a44e-8314e9efbe83
Table 8 page 44, dataset 5: Mutiny (25 m² kite, see page 8), 8 m/s wind speed, 5.19 kW average power, 14.1 kW average generation phase.
The average cycle power / average generation phase ratio is roughly the same as said ratio deduced from Figure 15 (average power 92 kW, with peaks of 300-400 kW). However, the scale has increased considerably.