Seeking advice on improving tone adjustment circuit on my 1980's Pedulla Series II bass. The tone knob has virtually no effect on the sound. I bought the recommended replacement pot from Pedulla, but I'm a total beginner tech-wise (tho I can solder) and when I went to replace the pot I notice Hey there's a little capacitor soldered on there. Duh. Anyway I did some reading and now realize the critical role of the capacitor, and that different types & values of capacitor will determine the tonal effect. So, what type and value of capacitor should I install? The one in there now is a tiny ceramic disc, apparently the kind most likely to do very little to modify tone. I'd like to be able at times to sound as much like an upright bass as possible. Thanks for any advice you all have to offer.