So, yesterday, I was ready to mow the leaves to add to the compost bin. It went easily, though I thought the mower would shred the leaves more than it did. It acted more like a vacuum cleaner that a shredder. I expected some bulk but not so much. But to avoid carrying the collection bag to the compost bin every 5 minutes, I brought out a big trash barrel to collect it in and drag that to the compost bin.
A path of mowing from the barrel and back filled the bag. The barrel held 3 bags. So I would bring the barrel to the bin, dump it, and spread it evenly (about 6"). Then added kitchen waste from the other bin on top. Then added 4 buckets of the grinded tree roots on that.
Repeat, repeat, repeat. Literally, 3 layers of each! I filled the 2nd bin to the top. At 4'x4'x4", it should heat up nicely even over Winter.
The 1st bin (where I had been dumping kitchen scraps for 2 years) was almost emptied. There is some stuff left, but because of tree roots, I have to get the last 6" loose with my mini electric tiller.