It's not called hot break but rather mashout. However, you don't need to mashout if you're batch sparging. Skip that 2qt addition before the sparge. At the end of the mash, drain the tun. In this brew that would have left 3 gal, and 2.5 gal respectively to sparge with. You're in a good spot with the sparge temps of about 180F but did you by chance measure the temp of the grainbed after you stirred the sparge in?
I suspect skipping that 2 qt mashout addition will give you a couple extra points of efficiency but you're missing it by a lot. I have to wonder about the crush. Take a picture of it next time.
I suspect skipping that 2 qt mashout addition will give you a couple extra points of efficiency but you're missing it by a lot. I have to wonder about the crush. Take a picture of it next time.