It takes some practice to use truck mirrors.
When having 1" clearance for dually fenders force pretty precise centering when it passes jacks, different angles of view via side mirrors make for easy mistake.
When looking in side mirrors driving under the camper, I observe for the same (visual) gaps between jacks and camper rear wings.
For the last moment I put reversed V-shaped board in 2x6 size.
Lace has rear wider on both sides, so in the tailgate opening I screw hardwood boards with taper towards the end, that leave 1/2 " of clearance for the camper.
That is good for me.
I have extreme tow package on my truck with 5 cameras and 360 view, but the only useable is bed camera, still it will come only with reverse gear and then I have to scroll to it, so most of the time it is more trouble to use than help.
Can post pictures of my V-guides in couple of days.
