Cat Whiskers Belt Moldings, Use or Not To Use?

mine had car whiskers to start with , I replaced them with new ones , drivers side works ok , pass. side is very stiff and have to open the door to roll it down, which could be adjusted out, but would let the window leak more . The new ones leaked on a new 68 , 383 form s I had when I was young , (first new car) , and the dealers couldn`t stop it back then.

I ordered a set from Repops which is suppose to be exactly like the originals the car came with, I will be selling the Cat Whiskers set as I was not happy with it at all.