The Sabbadius Funky-Vibe sounds great (on the youtube vibeos I found, I recommend this one: https://www.youtube.com/watch?v=HW0sPAyQKbQ).
I have an pretty early Fulltone Deja Vibe, which is lacking this magic. As far as I know, it is, with regard to the circuit, an exact copy. But the components are different.
Could the magic of the Funky-Vibe be brought into the Deja Vibe with these other components, i.e. Matsushita 2sC828 and 2sC539 transistors? What about the photo cells? Sabbadius does sell the custom made photo cells. https://www.youtube.com/watch?v=NMCHrHIR1b4