Any particular reason you want the F120s over a Reba (for example)?
I had 2 F120s, 1st set with QR and second set with the QR15. Both had the hollow brace. I’m not a great rider, but I did notice the flex in the fork. Front wheel didn’t track round corners nearly as well as the R130s, Revelations (QR) or Rebas (Maxle). I also couldn’t get full travel on either version – the forks stopped before the last 15mm or so, although the damping was excellent, and they are light. One was a 2010 model, I think, the other a 2009.
The Reba Maxle 120s I have at the moment are much flusher forks, and stiffer! Shame they’re not as sexy to look at 🙁