Word had it that even Oakley (employees) mangled more than enough frames installing/swapping lenses when it was added to OCE.
Indeed!
I finally got it figured out at one point, but we still returned them because the only time we could sell them in OCE was when I was in!
It's really a question of alignment. Once you got the alignment right, it honestly takes 2 seconds, no longer than a MD or GC. But people try to secure one corner deeply anchored, and then it's armaggedon when the times comes to put the other corners in.
But to answer the primary question: yes, it's doable. You just gotta let your feminine side (i.e. delicate and methodical) take over for a minute!