Your brute-force approach to finding hidden connections is simple but brilliant. I know a lot of current hobbyist reverse-engineering efforts have to go a lot f

Your brute-force approach to finding hidden connections is simple but brilliant. I know a lot of current hobbyist reverse-engineering efforts have to go a lot further, are destructive and involve sanding things off layer-by-layer (resulting in 1:1 reconstructions, rather than just board views), but I'm sure that gets harder and harder the more PCB layers are involved, especially with cutting-edge consumer tech.