the second batch was 1,200 lbs. I made more of the larger forms out of left over black plastic grass edging (another recent project - garden expansion/grass removal), plus more of the slices of the sunsetter shade tube (it was VERY heavy duty cardboard. I happened by a friend's house the day it had arrived and asked her what she was going to do with the tube it came in, she was thinking it would be a lot of work to hack it up enough to fit in the recycling, so I just offered to load it into my minivan and take it away. It worked out really well.
on the first batch, I used one each of a 6", 8", 10" and 12" sonotube, plus part of the sunsetter tube (~ 11"), and of course, a few of the handmade larger forms. The second batch was mostly the large forms and some more of the sunsetter tube. Apparently, I never took a photo of the second batch.
here was the setup for cutting the tubes. It was a two-person job. I guided the tube on the saw blade...my helper, Mark kept forward pressure on the tube (to keep it against the fence) and rotated the tube. Once we got a rhythm going, we made short work of the cutting and the mixing/pouring.