Waiver Question. Stacking same team WR

Alright guys I would like some thoughts before waivers go through. I am in a full PPR league and I have Tyler Boyd and Marquez Valdes-Scantling in my starting roster. I’m thinking about picking up either Geronimo Allison or Auden Tate this week for a flex pick. What are your thoughts on this. I don’t usually start 2 players on the same team but with Injury’s on both teams seems like an ok time to do it.

Roster this week.
Waiver QB
Mike Evans
Tyler boyd
Ezekiel Elliott
Phillip Lindsay
Will Dizzly
Flex play of the week