All excellent questions Mikxx1, and good to go through the math!! That volume I use comes from the dimensions they gave in the NR. It was 1800M x 1700M x 1300M (the open to depth is the 1300 M deep, cause Quantec tapped out, they can only go 1500 M deep, and the anomaly basically starts 200 M below surface, so that leaves 1300 approx) The trenching is all BONUS getting down to the anomaly! You will soon become addicted to the Math! Good job, until you crunch through the numbers yourself, people really don't realize how conservative we're being!