So I added a pot across my DC jack on my Big Muff to simulate the dying battery effect. The pot is intended to serve as a voltage divider. From what I've read here it doesn't actually simulate a real dying battery (is voltage starving a more appropriate term then?), but I'm ok with that. I like the sound of it. It also cuts the volume significantly, which is fine.
The problem is, when I engage the pedal, for a few seconds the pot appears to do nothing, as if it isn't there. Really loud, different tone. The volume and distortion fades back down to whatever I have the pot set for after a second or two. This sudden surge of volume makes this quite impractical to use on and off. Is there anything I can do about this, or is it a problem inherent to slapping a pot across the DC input jack? Sound is always so difficult to put into words. Perhaps I could record a video of it? It seems as though this has worked for other people, so I don't know what it could be.