Currently, DAI vault rewards are denominated in YFV. Why YFV over a different coin? Returns seem to be extremely sensitive to the market value of reward coins. Is the fluctuation in the reward coin market value a consistent feature of vaults?
Related, how/does the reward denomination change? When the vault changes strategies, do I as a user have to take any action?
Pardon the beginner question, I am relatively new and have been searching for this answer.