High PD kinda useless.

[MarcinM]

Daynarr said:
PD is just right. It's should not be able to stop large and decisive armies on their own, but they should stop small incursions and help your own troops to defend provinces which they do perfectly well.

This is exactly what I would expect and this is what it's doing for me (playing Abysia, expensive troops!). However I haven't run into cavalry yet, if they flank and kill my commander I probably won't be happy either. Still, learn and adapt