We recently published an article at FlightSim.Com regarding the use of our audio packages in Prepar3D. We are continuing to beta test our products in Prepar3D and so far we've not found any issues or errors.
The sound engine coding in P3D has not been changed from its original format in FSX so it stands to reason that our audio products interlace without issues.
If you do purchase a product from us to use in P3D and find an error please contact us and we will address it immediately. We always strive to guarantee the highest level of customer satisfaction and will continue to do so in the future.
We sincerely thank you for purchasing our products and your many years of flight simulation community support.