First, what do you experience folk call these? Joints? Crotches? I've got these leftover from a Chesnut Oak that came down in the ice storm of a month or two ago. I split all the straight stuff by hand with a Fiskars X27. The X27 went through it all like a dream. I got so carried away that I split a cord in 2.5 hours. Well that hand splitting was a little too brutal for the herniated discs in my neck so I bought a log splitter. Now that I have the splitter I'm wondering if these are fair game. Should I cut the branch part off with a chainsaw, running the saw down the length of the trunk? Or just throw the whole joint/crotch on the splitter after cutting them down to the 18" size? Is the section in the last picture even usable?