I have that set-up.
I actually just bought a warm mod a few weeks ago, for different situations. I Definately like the Pmod, but it does lack in the bottom end. I think it is great in a Jazz setting, and would probably be just as promising in a Bluegrass setting. The Warm mod seems to fit better in a Rock and Roll or Funk setting...at least to me. I dont know what your music preference is, but i would consider that.
Ive pulled some sweet tapes with the Bluelines>Pmod. Let me know if you want me to send ya some.
~Rhys