I am playing a plywood Shen with a Full Circle pickup, Thomastic Superflex G, D, and A with a Stark E. Acoustically it sounds fine. At low volumes it sounds fine. However, in a group setting or even a duo with a grand piano, it tends to get thumpy or at least more so than I would like. I have and have tried several preamps including the K&K Powerpack, Fishman Pro Platinum, Raven MDB-1, and even a Boss ME50B. My primary working rig is either the K&K or Fishman preamp (or both) into a GK1001RB and a 2x10 cabinet. The music I am playing is almost anything except straight ahead walking jazz (Latin, Rock, Country, Folk). I am looking for less attack and more sustain. Am I going to have to mix in another pickup or can I get something better if I get a clue about the gear I have? Is there a way to limit the volume of the initial ping or enhance the sustain as amplified? If I can get there with my Fishman box, please shared suggested settings, it seems that if I get more knobs to fuss with, I spend more time fussing and never settle on anything. BTW the GK is always set with the EQ flat, presence off, contour off, and string switch out (no boost).