Those are Steve's pages, but the old guy doing the tesing is a retired engineer named Carmon. I help him out from time to time.
The FD has more flash than DPX, but not too much (not distracting/blinding). Both expanded great through denim more often than not.
The FD deformed less than DPX w repeated chamberings in 9/40/45.
The petals are thicker, stiffer when expanded, do not fold back as far as often as DPX.
The FD 9mm expanded more than DPX, penetrated less. The 40 FD was pretty much identical to DPX. The 45 FD had some rounds fail to expand past .45 (opened up to a straight wall) but interestingly enough did not over penetrate anyway.
Magtech says in their in-house FBI type testing the FD 9 does 11 inches in bare gel, the 40/45 12 inches. The 9/40/45 all do at least 12 inches through glass, wood, and steel.
The FD 95g 357 Mag penetrated deeper than the Double Tap or Speer 125g 357 Mag GD and expanded almost as much (.59 v .61). Was a lot easier to handle from snubbies too.