I have no real exp. with the PMod UA5, but as I am shopping around for a WMod UA5, I thought I might be able to help...
What got me thinking about this was a comp I did with a friend few weeks back. He ran AKG 391>MP2>M1 while I ran ADK A51S LEs>UA5>JB3. His recording had more low-end. Mine had brighter mids and highs.
As I am lacking low-end, I thought I'd add a WMod or WMod+ to my UA5...
Sorta along this same line, I think I would add the PMod to the AKG 391s, to help brighten up the high-end...
So my recommendation would be AKG39x series...
Terry