VB-2 Vibrato (Behringer UV-300) and FZ-2 Hyper Fuzz (Behringer SF-300)
I did a vibrato before but was tempted to part with it (it went to an ILFer, incidentally). It was recently back with me for remedial true bypass work (Id originally kept the buffer, and it was proving noisy at gig volumes) and inspired me to get another one, and I went two's up with the fuzz, as I always was tempted with the elusive/expensive Boss original...
Both have been made true bypass, and the Fuzz has removed the boost mode, as I wouldnt ever use it.
Vibrato retains the rise function but loses the momentary activation mode, again by choice.
The big issue with these is removing the existing potentiometers and replacing them. I used 9mm pots for the Fuzz, with trimmer style for the Treble and Bass.
For the vibrato, I used 16mm with wired standoffs. The extra switch parallels C15 (47nF) with a 330nF cap to give a slower range to the LFO for real warped vinyl sounds.
Honestly it was a hell of a lot of work, but quite satisfying.
For the Vibrato, I hardwired it into the unlatch mode, but used a throw of the footswitch to replace the tactile switch, and retained the original illumination method from the PCB mount LED. For the Fuzz it was a case of finding the flip flop transistor with a bit of trial and error and jumpering it such that the pedal is always on.
If any one is attempting and needs details, just ask.
I love my HyperFuzz. That's a badass pedal imo.
