NeoVibe questions

[carrejans]

Well, time for some diy topics? 

I'm going to build the NeoVibe. Great work and explanation of RG btw. Thanks.
But I'm still having a few questions.

- Which types of LDR's should I use?
- For the "Depth" pot; is it 50k lin or log? (parts list and schematic are different)
- For the "Speed" pot; it has to be a "100k dual reverse log". Can anyone explain me what this animal is? Is it a stereo pot, with one log and other reverse log? Is it only necessary when you use a control pedal?
- the original Univibe had two inputs, was it for playing stereo???

Thanks...