Okay, so in my haste to install the joystick, and without any instructions to guide me, I practically take the entire thing apart only to find out all I needed was to loosen 2 small screws.

So I put the thing back together, and I'm wondering if I've done a couple of things correctly. Forgive me for not knowing the names of parts but here goes...
Should the rotary wheel be place centered within the U shaped optical interface like in the attached pic? Also, when reattaching the optic board, it seems like the metal holder is very close to two of the metal parts of the optic board (see pic). Is that how it's supposed to be? If someone who has one of these joysticks could take a look I would really appreciate it!