This started with my tree ID thread a few weeks back Tree ID, it Fooled Me! White oak variety and left it to rot as it seemed rather punky. I bucked a few off the other day to split and check it out. The entire heartwood was soft too. Ive seen standing dead barkless oak (red and white) with no sapwood and the same on the ground that was solid, but cant recall encountering oak that was this bad all the way through. The X27 sank into it like a sponge. I have the other twin tree to fell which is much larger and dead.