Hey John! I've made about 6 controllers with 3 polypropylene caps, and then I tried one with 4, and it caused clearance problems, since I didn't have enough room for the 4th one to lay flat. It doesn't seem to affect performance at all, so I should change the directions to reflect that.
Here are a couple pictures for J2:
This is a picture from the DB9 top (the 5 pins sticking out):
And here's another view:
And now for the side that goes into the control board......... You are looking at the top. If I didn't send that part (it's easier just to solder the dang wires right into the holes), then just solder the wires in the same order. (black white red, left to right, or whatever colors they are now. hehe.)
