I have been thinking about this a lot since my brief discussion with @sofu earlier on in this thread.
They chose the cells based on a wh verses power output basis. They have looked at the power they generally need to run at and decided that constant current isn’t that much and the bursts are within the 35E specs. Remember @Ackmaniac watt mode? I think they have their own version of that going on and are managing the power output in the same way. Those extra 2Ah from the 4P 35E pack over a 30Q pack are worth the drop in power output to Evolve. I bet this is slower in GTR mode than the GT was/is