Regarding the weight of the BW.
I asked lots of questions here before buying my BW 3300 for my F350 with factory puck system. Sometimes you even get great responses that stay on task!!!!
Weight of hitch was important as I had spine fusion 2 years ago and my Curt 16k slider and adapter was about 250 pounds!!! Too heavy for me!
The Companion made for my truck comes out in 2 pieces and each weigh about 55-60 pounds. Really manageable IMO. My toyhauler loaded runs about 15-15.5 k but my hitch has a 20k rating.
Another thing to consider . When I did use the adapter with my Curt 16 k on a different fiver, I had more loose movement as there was now more points of contact. The BW grabs the pin and zero movement!