I've only seen one done like that around here, and it was done decades ago. I couldn't even begin to guess at finding someone skilled. Maybe you'll have better luck in SF. However, when the CA market tanked many of the skilled pool crews moved east (I employ a few).
The one I worked on was so-so at best. You could tell it was a remodel.
I don't know what technique is correct, but on this one they had sawcut above the tile, tucked the fiberglass sheet in there, and worked it down.
Good luck.