Rip Leave and tear philosophy, why not use a bit of intuitive thinking and try at least to determine if conduits are present. I mean the price of copper is not going down.Mark it, cut it and fix it when necessary.
At a minimum on this project the OP mentions there is lost time, wages, material, and a lot of finger pointing and arguing.
Agggghhh...read the post.
I said "Just use your best judgement to avoid it and fix it when you can't". Doen't this imply intuitive thinking?
I also tried to point out that I believe there will be a net loss of resources if every sawcut was properly located @ probably 200 bucks a whack.