I literally just finished a run. Firstly when it comes to end yields it's quality in quality out.
I ran a pound of fresh frozen and got back 42 grams. "But" I only keep 25,73 and 90. The rest I chuck out. Secondly I only did 2 runs and mix by hand. So do consecutive runs.But if it starts getting greener than shut er down. This is solely my opinion. The more runs you do you will dial in the right mixture and outcome of quality dankness.
Good luck