I have an Oudie 2 which is being fed gps data from a Flarm Powercore. The netto data has always fluctuated from positive to negative and/or has values that don't align with the airmass, seeing -15 kts or +23 kts when the air is fairly stable during one interval. The flight track looks like a checkered line of orange and blue sections. My current glider has a 9050 and the flight track has a much smoother flight track profile which feels like it matches the vario. Below is a photo of the 9050 and the oudie flight tracks turning during the same thermal.
I know the just getting gps data without any pressure data is not as accurate, however I feel I have some incorrect settings in the Oudie which is causing the flight track not to be remotely accurate. Luckily this hasn't impacted flight glide predictions, but it does make it harder to center lift and find convergence lines.
Any advice would be greatly appreciated.