Rear View Camera opinions

I have had two rear view camera setups on my rig. First one was an inexpensive camera off the net into my laptop. Never worked very well, and when I stopped carrying my laptop in the cab (I use my cellphone now), I quit using it. I then bought a Rear View Safety setup, and put one camera on the back of the shell pointing down for hooking up, and the other on the back of the trailer for backing into campsites. The RVS setup works ok, but not great. The camera doesn't handle shade/sunlight transition very well. If the sun is in front of the truck so the hitch is right on the shade/light transition, it's very hard to see what's going on. I've resorted to putting white grease on the ball, and a small piece of white paper on the trailer connector to be able to align them. Also, the system almost never shows any color, it's a washed out black and white. I'm considering going with a different set-up, this one is so marginal for my use.