OCD Component Switching

[mremic01]

Hi all

I made an OCD for myself with all the v3/v4 differences switchable. I really don't hear any difference when I switch them though. I at least expected to hear a difference with the symmetrical and asymmetrical clipping. I've got the caps and the 1n34a wired up to switches like this: http://i.imgur.com/jYuFE.png. Is that the right way to go about it?

[Goodrat]

What are the two cap values?

[mremic01]

I've got 3 switches. One switches between 68nf and 100nf, the second between 1uf and 10uf for the output cap, and the third one removes the 1n34a from the circuit. I don't hear any difference at all with or without the 1n34a.