Thank you gustavz and vtgearhead, I'll give it a shot. I usually don't use high levels of reverb except when messing with more ambient clean tones. I was playing with the Twin amp in the sneaky amps (playing Yellow Ledbetter/Hendrix type stuff) and put the spring reverb on and started hearing a kind of chirping with knob between 10-12 o'clock. For some reason it was on the high notes on treble strings and seemed to be random to where I couldn't replicate the noise hitting the same note.. Figured it was some kind of sensitivity thing with the preamp signal strength being so high with Volume on max and feeding the reverb module/chip. I may try also lowering the preamp volume and cranking the Master a bit more insteadyou can easily solve this, by setting the spring sense very low. High levels of spring sense does'nt sound good.