I've sold my 7x42 FL's by the end of 2007.
The diopter adjustment system is flawed by design.
There's only one clickstop, on the "0" position, and any diopter position other than "0" did not hold its position when I changed the IPD by using the hinge.
I've experienced more such bad designs in combined focus wheel/diopter systems, and I prefer a completely separated focusing and diopter design, latter being on the right or left ocular.
Best regards,
Ronald Sinoo