Those little saws will WORK. Before I knew better(this really means before I found this site and caught CAD from you guys) I cut all my wood with my ms210. Big wood, small wood, it didnt mattter.
The long log in the pics and movie is Acacia longifolia (I don’t know the English common name).
In the back firewood pile it's mostly Acacia dealbata and Cupressus lusitanica. Both Acacia species are invasive species here. It’s not the best firewood but they grow up very fast.
I’m cutting almost all Acacias to replace them with the original forest species of this region, Oaks and Pines. I will maintain some Acacia's area only for firewood.