What a difference modern technology makes...

I went to the land today to do some more chipping away at the ledge we're trying to remove, and after only about a half an hour I had broken off more mass than what we have in many day-long sessions prior.

The secret: Ecobust expanding mortar... poor that gloopy-gloop into holes drilled in the rock (big shout-out to my friend and my brother for helping get all those holes drilled [and swinging the sledge and stuff]) and over the next 48 hours that stuff expands like your waist-line on Thanksgiving to stress-fracture the rock quite nicely.

...nice enough, in fact, that the good ol' pick axe and pry-bar can chunk off the slabs quite well.