pigtail

Another setup. Note the extra shackle used to connect the forestay. This is not required, there is enough room with the Harken furler to insert the thimble right into the swivel,(or drum)jaw.If the thimble is a tight fit, just tap the sides with a ball peen hammer to conform the thimble slightly better to the wire.
Also note he has used an extra swivel,(left side of photo). A simple tang would be cheaper.