Inaccurate Fuel Flow on Garmin G3X Touch

As someone who is installing a Garmin G3 Touch in a Rotax 9129iS airplane, I was surprised when this topic went cold.  Since it's over 1 yr old, was there some resolution?  Did Garmin or Rotax ever respond?  On a previous airplane I owned with a DIY Fuel injected Jabiru, I was able to calibrate the systems with a GRT EIS system very well using fuel injector pulses and pulse widths after only a few calibration flights.  I was hoping this was going to be the case with the Garmin.

So, has anyone gotten any new information over the past year?

Just to point to the 915iS discussion along the same lines....

https://www.rotax-owner.com/en/915is-technical-questions/8593-fuel-calculator-inaccuracy

I also am really depending on Rotax and Garmin to identify and fix this issue. I have a Rans S21 with. 915is and  see consistent 11% or so error—on the DANGEROUS side!

with no K-factor adjustment possible, this is frustrating. 

It is important that you create a CSIR for this - https://www.rotax-owner.com/en/support-topmenu/csir-service-information-report