It would be more accurate if it explained that you will only yield 75%, not 100%. If your material has 16% THC then whatever you make with it will be about 75% of the total, maybe less but seldom more.
I'm looking into a precision controlled decarboxylating device. The claim (with some lab results) is that it will convert 100% THCa to THC and ~98% CBDa to CBD. Lift