I thought we should start a new thread and simply list the known issues that you have seen with the radar. I recommend that you state the firmware version and what issues you have seen. This thread should only contain known issues so that we can all easily understand the limitations of this device.
With firm 2.20, I noticed that riding on covered narrow roads, roads where there is much foliage on the side and above, that cars have snuck up on me with NO warnings. This has happened on multiple days at the same location so I am confident in this issue.
I also noticed that with 2.20, I saw very few 4 car alerts (where 4 dots show up on the screen). With 2.00, it seemed to track 4 cars much better. I have reverted to firmware 2.00