From the first press release related to battery testing that HPQ has published, all the way to the April 18th NR, they indicated cycling at 0.5C as you can see in the picture below.  In the press releases that were published after April 18, I do not see any mention of the cycling rate, but it does not mean that it was not still at 0.5C.  The graphs in the newer NR are not the same type, I'm guessing it is simply because they might have printed them using the new equipment Novacium acquired.

Now, what are C-rates ?

This webpage contains a lot more information, but mainly "Charge and discharge rates of a battery are governed by C-rates. The capacity of a battery is commonly rated at 1C, meaning that a fully charged battery rated at 1Ah should provide 1A for one hour. The same battery discharging at 0.5C should provide 500mA for two hours, and at 2C it delivers 2A for 30 minutes. Losses at fast discharges reduce the discharge time and these losses also affect charge times.

A C-rate of 1C is also known as a one-hour discharge; 0.5C or C/2 is a two-hour discharge and 0.2C or C/5 is a 5-hour discharge."

If I understand all of the above correctly:

-If the GEN3 test were also done at a 0.5C rate. 

-The average capacity of the 3 cells started at 3,883.0 mAh and decreased to  3,864.8 mAh by the 50th cycle.

Therefore each cell was able to provide more than 1.9 amp for 2 hours during each cycle.

Hope this help.