First of all, we absolutely love the SparkPNT GNSS Disciplined Oscillator and the Plus version!
It would be amazing if you could add an internal header on the PCB for the Spark PNT GNSS Flex modules. We would really like to add one of the various available GNSS Flex modules to the GNSS DO Plus and use it as a PPS source. The main things that would need to be routed would be power, 1 or more serial lanes to the ESP32 and the PPS to one of the event inputs. The antenna for the flex module can be routed externally to either a splitter or a separate antenna (both would be customer provided).
We think this would be a fantastic expansion of capability to an already great product!