That all sounded very impressive indeed, until...
Yes, well, that is just a teensy bit different!! We do some 2.5m lengths, chestnut for stakes, and douglas fir for pallets. It's not even the cutting up that is slow, it is the battling through the undergrowth, cutting and separating trees which have fallen down all higgledy piggledy, dragging trunks around and digging up stumps. Another thing, the other day I posted about getting chainsaws stuck in trees and though afterwards you must think us (well, 'im outdoors) very useless with chainsaws to get them stuck. This happens not with standing trees, but when they are lying at angles and in heaps. You never know which way they are going to go, so the first cut at the base of the trunk, even if you are intending to cut a V, can sometimes trap the saw if the tree slips down, twists, or even springs up during the cutting.