I was faced with the same problem today. My Intellijel Performance case has a power supply with only 16-pin sockets. Most modules that provide a 10-16 cable put the 10pin end on the module end, with the 16 pin end on the power supply board. It's a shame to have to bend or cut pins on the Pepper board. I used a 16-16 cable, and that worked perfectly, allowing the Pepper to access the +/-12 part of the ribbon. Perhaps a 16-16 is a better cable to ship with the Pepper than the current 10-16???