Great call on the B&W!
The jaws are so thick on the B&W that the standard 1/4" thick disk makes it hard to see when the weight is off the hitch. Hensley sells a 1/8" thick disk that is not cheap but it does make it easier to unhitch. Some will say they have no problem with the 1/4" disk and B&W. I am saying it makes it much easier!
If you want to save a buck cut the bottom out of a 5 gallon bucket. the circle on the bottom is the exact size to cut the hole. I have one as a backup.