I had one in my E2, I modified it. Cut it down to fit on the mounting board and used an actual foam/rubber material as the grip instead of the plastic tracks at the ends. Works great for PCBs with the JAMMA positioned for it. A larger PCB with JAMMA on the higher measurement is gonna be an issue. (Only had 1 or 2 like that)
I don't personally, but a friend of mine has 3 of them. The PCB feet are not actually screwed into the wood, it's just attached to the PCB itself. The PCB Holder is just locking the board into place. So awesome for swapping boards often.
cheap plastic. I had to cut mine too to fit in a blast city. Adding a foam/rubber is a good idea.. better than I did. I screwed a "stopper" piece of wood at the end of the PCB mounting board to stop the pcb from sliding when putting the jamma harness on.
here it is holding a 3 layer monster PCB . who can guess what it is ?