Thank you; very informative. We have two early 2017's, both with the "yellow bar" issues. As for the other glitches, we have those very rarely but would suspect they are MCU issues too. For now, we wait however. Since the labor for the swap would already be covered under warranty, we would really prefer the new, upgraded MCU for a better, faster, experience but Tesla has yet to provide a price on that, despite Elon's Tweet of about two months ago: https://electrek.co/2018/03/27/tesla-mcu-retrofits-new-software-update-elon-musk/ https://twitter.com/elonmusk/status/978665254329569280?lang=en It could be many more months?