Fishman FLUENCE SIGNATURE SERIES Greg Koch Gristle-Tone P90 Pickup Set (Black)All of Gregs favorite P90 tones in one pickup! Nowhere are the intrinsic benefits of Fluence technology more up front and apparent then when applied to the P90. Unlike stacked humbucker P90 variants which can actually aggravate certain problems while curing others, the noise, the acoustic feedback, the hum, the inductance issues caused by guitar cables, amp and effect inputs with Fluence, all of it is eliminated, leaving pure, unadulterated, Multi