I tried doing the mod and when I had to cut a circle in the KSC75 pad, I cut it too much. So I thought of buying new cushions from the KOSS website (5$). If I'm already buying new pads, I thought why not just buy new KSC12 cushions. Unfortunately, I'm not able to find KSC12 pads in the KOSS website and not even on eBay.
Please help me!
PLANTRONICS 40709-02 Ear cushion black foam pack 2 AUDIO VIDEO ACCESSORIES ACCESSORIES
update: Actually it was "boogernights" in post #291 who said they should work...it's chump change anyways.