I came across this piece on the interweb. It had a before and after pic of Boykin in relation to the S&C program. I think the results are pretty astounding.
All the reports that I read are they're "Training for the 4th quarter". We won't know anything about their endurance until Sept 3rd at around 10 pm. Practice isn't even a good indication of endurance. I was mainly referring to his arm in those pics.