I ran into an inspector in Dallas was year who uses this level system, and I was impressed. He was an engineer too. I think engineers know how to use these systems and have the skills to use them correctly and avoid trouble. I kinda worry that inspectors with lesser skills will get themselves into trouble using this technology, since it’s pretty far past the SOPs.
Especially since I agree with Randy that a number of things can be going on with a structure and maybe inspectors should not be too quick to specify in their reports the causes of problems that they’re not required to identify. I think cracks are good clues as to what forces are acting on a structure, and they might lead an inspector to look somewhere he might not have looked if he hadn’t seen a crack.
If either Randy or Darren were to give a one-day class on any aspect of home inspection, I’d happily pay good money to attend.