Quoted from yaksplat:how did I get so lucky
You weren't lucky....
Quoted from yaksplat:11'- 2-1/8" down to stone.
Any significant damage occurs when you fall 11'-2-3/8" or greater.....
I am glad you are okay, and am enjoying seeing your progress. I did enjoy the humor (intended or not) of knowing the exact distance of your fall.
Keep on keepin' on, looking good!