First time Garmin user here. I created some courses in Garmin Connect on the web and sent them to my 955 via the Connect app. When using them during walks in the residential area where I live using "Do Course" there are two notifications I receive. The first warns me of the upcoming turn and the second is the for the actual turn itself. The upcoming turn notification seems to kick in at what the 955 thinks is a point approximately 75 feet from the actual turn, but in reality it is much close to 10 to 15 feet from the turn. The actual turn notification usually occurs when I've already completed the turn, which makes no sense. The 955 is configured to use All + Multi-Band and when I look at the tracking of my walk in the app it is highly accurate. Is this to be expected? I'm concerned that if I were to be riding a bike under these same circumstances I would be making a lot of last second turns that might put me at risk.