The current issue of SynthMag features an article about the Tubbutec Polysex and Modysix mods for the Korg Polysix.
I did not have the opportunity to read the article myself yet, but I am sure it is a fun to read but honest review. So if you need a second opinion maybe this is the place to look.
You can get the magazine in a Kiosk or at their shop (also as PDF).
