Juwan or RJ Harvey at Flex (Full PPR)

Should I flex Juwan Johnson vs the Giants or RJ Harvey vs the Eagles this weekend?

I'm leaning towards Harvey as a possible pass catching back if they're down against the Eagles, and Juwan might not be 100% while still being a starter. I have Bowers at TE too, and have the same problem with him not looking 100%, but I feel like I gotta roll with him and hope for the best.

Is anyone in the same position?