This is my setup.
The pivot is placed back far nuff to allow the boom to go just short of 90 degrees.
The rigging is just like end boom sheeting on a main or mizzn.
I can sheet the jib boom to the center of the boat.
Good for lazy sailing.
The boom also is my gin pole for lowering the mast to go under bridges.
One thing with the pivot where it is though--you can't just drop the jib, you need to release the hanks as it comes down or raise the boom.