It wouldn't be completely hidden as my usual thumb anchor points are the bridge end of the neck pickup or the neck end of the bridge pickup. She'd be peeking out around my arm most of the time.
Once I had the idea it seemed like something that I would have to do if I ever had the chance. I admit to becoming somewhat obsessed with the idea of that inlay on a custom S-II once it popped into my head.
There are some things about all-out custom Alembics that are well beyond rationality. That's why the Mothership is quite literally the Dream Factory.
Some day.....
Paul