Thanks for the pic Bruce!
I agree about the pull chain being more bomb proof, I was researching and read a few horror stories about the SRAM clickbox.

I rode an 18 mile loop today from my driveway out & back, the big ring worked very well. I was in the 56/11 combo even a little bit more than I had thought I would be.
I had toyed with only going from 52t to 54t...glad I went to 56t after today's ride.