Beautifully done! We with CF seem to have a certain drive that others don't, more often than not. Nice to see it in action.
I finished a 10K last weekend, myself. But there were no sandbags involved! Still, at FEV1 of 28% and nearing my 41st birthday, I guess I felt a little like a Spartan just crossing the finish line.
Here's to many, many more finishes for the both of us.
Cris