I just received my Prop-1 controller and my AP-8 sound board from EFX-TEK last week for my newest prop for the year. I'm planning on building a MIB (Monster in a box). I tested out the Prop-1 and the AP-8. Everything seems to be in working order. My program is almost done. I still have to put together a few simple circuits. Once that's done I have to start building the box and put it together. After that debug and modifications. Does anyone have any ideas or hints they'd like to share?