My chain: (passive) Bass>polytune>EHX micro synth>aguilar tone hammer>amp. Do I want the Ernie Ball vp jr 25k or the 250k? The reason I am getting it is because I leave the volume all the way up on my bass, to allow as much signal as possible to go to the Micro Synth, which cuts out early if not given enough signal. Since it is a pain to walk over and adjust the volume from the amp, i would like a volume pedal. Thanks for your help.