Here are a few discharge/charge graphs. The average rating is 2.3 ah but I am doing a charge of 10amps and a discharge of 40 amps. So fast charge and normal discharge will lessen the total ah of the cell. True usable capacity that is actually usable I'd say is 2.1 ah and that is doing fast charge and normal discharge. So a 40 amp discharge is like 16C. Better than the prismatic. Not sure how well they live in this condition but they can do it for short periods.
I am hunting for a way to test for 120 amps out of one of these suckers. I am also looking to build a spot welder so I can have better connections for building larger packs for higher amperage loads to test them. As a single cell they get hot fast. It could be because of the way I have my connections to the cell. When I first did the test the cells made some funky fast clicking sounds. It was a crappy connection. Once connected better that went away. I think I could still do better.
Below is the graph where I charged at 40 amps. Too fast and too hot. 152 F.
Here is a link to the PDF Spec Sheet