When adding new a/v tracks to sequence they should default to current track size setting.
Personally, I miss the old track height button from past versions. The collapse is way to small and expand is way to big for general editing. I made a custom preset that is more medium sized. It's just big enough to display thumbnails. The problem, however, is when you add a track it doesn't add it at the current pre set size which makes no sense. Please fix this.
Jeffrey Drake commented
1,000 times YES!