just got past the ray archuleta part, he has a lot of blah,blah type stuff going on, I mean who in the heck is going to run a herd of cows on every acre.   but that david brandt guy I could listen to and learn something from, he mentions some things that I have observed to in my small time cover cropping  experiments. 
gotta go boil a turkey now will watch the rest in between time.