DP / Flex and CR

[Steve M]

I don't think it matters where the DP is defensively, since the DP is batting for F1, no CR allowed.

This citing - "The rules also state that, after the first half inning, the player who last played the pitcher or catcher position in the previous half inning is allowed a CR is she gets on base." - is only there to identify who is the pitcher and/or who is the catcher. Regardless of where the DP is defensively, that's still the DP.