I’ve always noticed that the Boss CE-5 and CH-1 chorus pedals sounded unnatural. The pulsing effect wasn’t smooth but seemed to pulse like an engine struggling up a steep incline. The effect is even more noticeable once the pedal is modified with our Vibrato mod. The LFO is the part of the circuit that creates the pulsing cycle; when you turn up the Rate knob you’re directly changing the timing of the LFO. Above is a picture of the waveshape at the output of the LFO showing why the effect has an unnatural pulsing sound. You can see in the bottom half of the image how a symmetrical wave form will give a more natural sound and smooths out the stuttering. Video clips will be posted in the near future.