After running with the Garmin 5S Plus (FW: 6.00) and the Jaybird TARAH headphones (FW: v0.4.5.1) for several months, these are the issues and best solutions I have.
Problem 1 (TARAH): The TARAH headphones are watertight which is fine for stationary activities, but creates a vacuum in my ear canal with a large thumping every time my shoe strikes the ground. super annoying. I imagine this is for sound isolation and swimmers.
Solution 1: Cut a small hole in the ear canal portion of the rubber removable inserts (picture attached). I used an X-ACTO knife to do this but a small punch would be a better solution. Jaybird really needs to release inserts that are designed for runners in mind, not just swimmers/stationary.
Problem 2 (Garmin 5S+): While in run mode with GPS active and headphones paired with music playing from storage on the Garmin, the first 2 minutes of the run are almost unbearable with the amount of music dropouts then everything magically gets better.
Background: This one stumped me for a while. I thought it was issues with the TARAH headphones at first so I tried different sequences of pairing/starting app/resetting/etc to no real avail (best practice to start the run app for a few minutes, then pair headphones). Then I thought it was interference with either WIFI or bluetooth. I disabled WIFI on the Garmin, but no difference. Finally the bluetooth seemed to be the real issue. This is a separate issue from the receiver being on my right side with the Garmin on my left wrist.
Solution 2: turn off bluetooth on my phone (Pixel 3) prior to pairing headphones. For some reason, the Garmin to Phone sync would mess up the ability to play music for 2 minutes after I was out of range of my phone with the bluetooth on. Turning the bluetooth off, no initial 2 minute dropouts.
Problem 3 (TARAH & Garmin 5S+): Random music dropout during run. This is the heavily discussed, wearing the watch on left wrist vs TARAH receiver on right side.
Partial Solution 3: The only way I seemed to have mitigate this is to remove the cord cincher so that the receiver hangs a bit more forward to make a better direct line of sight with the watch. This has removed 95% of the dropouts for me. Not the engineering/hardware/firmware solution we need, but it works a bit better.
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