I called B&W and asked this question directly. I was told that "officially" B&W had not done any testing with the Reese Elite Underbed system specifically. However, they had heard reports from owners that this works. Some owners reported they were able to use the hitch with no problems...however, some owners reported that they had to grind a little off the B&W Companions attachment cams to make it work.
Please let me know if they tell you the same thing or something similar.
Thanks!
Jeremiah
TV-2022 Silverado 2WD
TT - Zinger 270BH
WD Hitch- HaulMaster 1,000 lb Round Bar
Dual Friction bar sway control
Itโs Kind of Fun to do the Impossible
~Walt Disney~