Discussion about the Korg PolySix synthesizer

I've always thought that the Polysix would benefit from a sustain pedal.  I've noticed that many (all?) of the MIDI retrofit kits offer a sustain pedal as one of the enhanced functions that the kit brings to the Polysix.  It's a great idea.

Given that I've been hacking my Polysix, I finally added the sustain pedal functionality to my own Polysix.  I sure do like it.  If you're interested, you can check out a demo and the "how to" at:

http://synthhacker.blogspot.com/2013/07/polysix-adding-sustain-pedal.html

In an old thread on this topic, I saw that Johannes added a sustain pedal to a Polysix without having to implement a full MIDI upgrade.  Unfortunately, in that thread, the documentation for his mod was a dead link.  While the text was a decent description, I'd love to see a little more detail.  Does that documentation exist anymore?

Has anyone else hacked a sustain pedal into their Polysix?

Chip