The only remaining question is if the device can discriminate the within-disc location of the pressure variations, and with sufficiently fine percentages,
Assure that the strain gauge(s) on each propeller blade can be distinguished 1/2/(3) by the data recorder, then add one more channel with a rotational position sensor, and you'll know where each blade was to within a few degrees when the load was measured. This is all well within MT's capability and understanding. I have worked with them on several propeller certification projects, which resulted in my issuing STC approval for their installation.
If your preferred language is English, there will be no problem. The technical staff I worked with there speak better English than most people in North America - they have not learned to be sloppy speakers yet. But, remember, don't present yourself at MT with a limited budget, they already have lots of work to do, so they aren't looking for budget minded projects...