i know this info isn't exactly new, but anyway. i had the same issues with my fishman piezo as everyone. treblish, cold sound, exaggerated finger and string noise, you name it. not anymore. i sanded the bridge flat where the piezos sit, and hot glued them to the bridge, in th exact position where they sit when clamped on. this sounds good even without a preamp (both my combos have 1megOhm inputs). the finger noise is gone, warm midrange has appeared, bass is less boomy, the Pu has more output. it may not be the best sound in the world, but it is close to how my bass sounds accoustically and it sounds nice and definded. so BP100-users out there, before you spend money into other PUs, at least try the hot glue thing. just my 2cts!