Better advice! :mrgreen:
During a recent inspection of a home with T-111 siding, as I inserted the Protimeter probes into the siding the entire meter penetrated what was left of the siding! You try to be careful during the inspection process, but the unexpected will happen at times. If the decay is evident, I doubt there would be any basis for the owner to ask for restitution from the inspector. After all, the rotted wood material is worthless anyway.