Angst? What Angst?: One of Tobia's defining characteristics. While it's not like he doesn't angst at all (this is a Gundam story after all), he can sleep it off and be completely fine the next day. Played with when he has to act shell-shocked to (briefly) infiltrate the Jupiter Empire.
Arc Fatigue: Volume 5 starts with Mother Vanguard sunk and Kincade supposedly killed, but then it hits the brakes for a while and focuses on Tobia, Berah, and Bernadette on Earth undergoing a collective Heroic B.S.O.D. over said events, sitting out the war as the Jovians walk all over the Federation. It isn't until Kincade comes back at the start of Volume 6 that things pick up again.
Cargo Ship: Grey Stoke has a brotherly bond with the Gump. Which makes sense, since he's been using it ever since it was called the ZZ Gundam.