Here is a snapshot of my latest circuit diagram. When my latest order from Pedal Parts Plus arrived I realized that the switches I ordered were 3 position and not just on-off. Originally, I was going to switch the hard clipping diodes. I was going to start assembling my pedal. Now I have another switch position that I don't want to let go to waste. I tried some other diode combinations, but didn't hear any difference from the ones I was already using. So, I thought I might try using a transistor I'm place of a diode to provide clipping. It is working and makes a noticeable difference. It's providing something of a treble and level boost and changes the character of the distortion. I'm not sure if I like it, though. I need to play around with it more to be sure.
