Bob sent me pictures of my build in progress last week and I realized that on the operating table was a two-piece FLGR. For no other reason than the ease of takedown, I asked him to swap it out for a GI setup after consulting him on his opinion of the differences between the two.
That said, I have a one-piece FLGR in my Fusion that does not require any special tools or procedures to take down, and I've had no problems.