I am going with the Blue Ox Alexis towbar and am undecided about thich base plate to use. The Blue Ox bracket weighs about 42 lbs. and, with the weight of the towbar I'm a little concerned about what this weight might do to the front end geometry, tire wear, braking, etc.
The other approach is the Roadmaster brackets, weighing perhaps half or less. I'd then have to get the conversion brackets to connect the Alexis. My toad is a Lexus LX470. Any thoughts?