About installation Steve....
The pot has three lugs, like a normal pot. But the middle one is raised up, as you can see in the picture. (blue MID on photo) It's still layed out in a row of three lugs, and it's exactly the same as any other pot, except for the middle lug being higher up.
But, for the ground, you use the proveded ring/washer instead of the back of the pot (red G on photo). So you MUST use that little washer and attach your ground wire to that. So you need to use a wire to attach from the outside lug to the ground washer, instead of bending the lug to the back of the pot for the ground like normally done.