Instruct: Classify a review into positive or negative sentiment.
Query: Inconsistent sound

Fishman V200 Professional Violin PickupI am using this pickup thru a preamp, and it does sound awful, it has the potential to sound good, the problem is inconsistency; As soon as you move the PU one nanometer, the sound, tone and impedance is all different.Very hard to maintain, didn't like it's sound. sounds "piezoish" like all other piezos in the market.Would love to hear about a PU (even bridge PU - must be feedback resistable) that has better results as far is it concerns "acoustic tone".