Thanks for the answer. I don't have an R series yet (Ordered the R7). The manual was a little confusing at it just says the threat with the strongest signal would show in the main display. I didn't know if the priority setting was the over riding setting or if having threat display would over ride the priority with the strongest signal regardless of band.What RD are you currently using ? The all threat display is nearly the same as the R1 and R3, but adds arrow direction to each signal. Your choices are strongest signal or KA priority. That determines which signal shows in the main display. The other 3 go to the Left side. I'm guessing most people go with KA priority.
Does that answer your question?