With all do respect, was this test of drivers preformed with starter balls, with a distance of 0.0.
I rarely use full backspin on a drive, it prevents rollout after landing, 1/4 or 1/2 back seems to work better with a tail wind, no spin into win, but it depends a lot on the ball being used stats. such as distance & spin.
I respect Robert 1893's opinion, he seems like a very intelligent fellow, i would appreciate his assessment of the driver test that was done.
I did check some player stats. that use the R1 L103 driver with an average ball, say dis.4.5, one player has magnet in name.