Volkert that is a really good observation! Can you please tell, if you remember, how many mAh did you put back in after Spin99 reduced power? I am asking this because I have a feeling that Rhinos 4900 are underrated in terms of their nominal capacity.</p>

Discharging LiPos down to 2,7V cell is not very healthy so I am not going to do that intentionally with my big packs , but I do remember experimenting with some smaller Rhino packs and they were all underrated by 20% from their nominal capacity. That might be the reason why Rhinos are so good. On the other side Kokam gives nominal capacity based on 1C discharge  down to 2,7V/cell.</p>