…and seriously: it is probably “the labs fault”. They are not extracting all the cannabinoids from the matrix you are providing.
Yeah, you can compensate, or you can work with them and have them spike your matrix and actually figure out their recovery rate so they can give you accurate results.
Most labs don’t care. Some may still be clueless (depends on market maturity). Finding a lab that will solve this with you may be non-trivial…
@kcalabs should certainly be able to work up matrix specific recovery rate for you. Probably won’t be free, but should certainly be worth your while.