As a proof of concept it worked. Even though the optic was somewhat unresponsive (because it didn't fit compleedly planar). Biggest backdraw was that I misplaced the wheel (too much in the front, couldn't reach is with the thumb).

Sadly I can't provide pix from that for "fail of the week", because I lent the thing to a friend, who claimed it fitting for him and wanted to use it. Old as I am I can't remember who it was...

So maybe I do a version 2 some time.