Static measurement can be unreliable because thermal conductivity thru meat can be variable depends on:
1. Moisture contain in different areas.
2, fat layers have different conductivity.
3. measured parallel to fiber
4. measured perpendicular to fiber,
5. how close to bones.
6. Is the saltiness of the meat evenly distributed?
To me, It seems poking around with a thermometer yourself can give a better idea.
dcarch