The Chamber Effect has taken over yay's overall gameplay and is a big reason why he is not performing as good as he was before on Jett. Just take a look at Cryocells and how one tricking chamber has drastically impacted his performance on Jett and playing other duelists as well.
Although DSG does not have the quality support players that yay had on Optic. Even back on AndBox yay was hard carrying on Jett and looking much more confident/comfortable.
The Chamber Effect claiming another victim.