RE:RE:RE:RE:RE:RE:RE:RE:SPA hit some actual High GradeA geo that doesn't know the Engineering Classification system: I guess he doesn't build ..
https://www.costengineering.eu/Downloads/articles/AACE_CLASSIFICATION_SYSTEM.pdf
10% Contingency is std for Capital Projects and I have seen as high as 20%
Perhaps Brent needs an update as he is a pretty smart guy/geo