So I managed to get out there and fly the Hero 9 and Hero 8 again side by side, there are a few extra clips flying solo, better online than on my HDD.

Index:
0:00 - Intro
0:44 - Gear and In Park Intro (Day2)
1:25 - Hero 8 vs Hero 9 (HyperSmooth 2 vs 3) - No boost (Split Screen)
2:12 - The Crash :(
2:45 - Thumbnail
2:53 - Hero 8 vs Hero 9 (Reelsteady Go) - Raw footage included.(Split Screen)
4:03 - Footage review introduction
5:26 - Gear and In Park Intro (Day1)
6:05 - Hero 9 Reelsteady Go (Default Settings) _ (Full Screen)
7:19 - Hero 9 Hypersmooth 3.0 (No boost) _ (Full Screen)
8:38 - Hero 8 Reelsteady Go (Default Settings) _ (Full Screen)
9:16 - Hero 8 Hypersmooth 3.0 (No Boost) _ (Full Screen)
10:00 - BONUS Vlog Test (Hero 8 vs Hero 9) - Reelsteady Go - Raw footage included.(Split Screen)
11:54 - Outro and My Summary of What I prefer.