Here's a link to shock road test:
https://www.motorhome.com/tech/diy/shock-therapy-rv-shock-absorber-test/I just replaced my stock shocks on my '05 class C with Bilstein on the front and Monroe coil over on the rear. My coach has 110,000 miles on it. I have only taken a short test drive which included some interstate and some rough side streets and the ride was much improved. I will be heading for Montana in a few days and roads will vary from interstate to one lane forest dirt roads so they will get a good workout.