I got my father a set for XMas, went with the smaller set and just 2 of them. Now I wonder if a 3rd for backing up would have been a good idea.....dammmmmm.
I got my dad 2 for christmas 3" as well.. 1 faces forward 1 faces rear, more than enough light...
Only problem is one of the springs is MIA and BX-Expanded will not respond back to my emails, so i have to figure out how a new way to mount.