counterweight on PC 7424? change out?

[HEMMISSEY]

Im about to purchase a flexible backing plate, to a 6" one, now do I need to change the counterweight or can I use the same one that came with the PC? I was on autogeek, and it stated.......

The counterweight is for use with a 6” backing plate only.

And what pad size should I be using with the 6"? Or should I buy a 5" backplate and use the 6" pads??? People are saying to use a bigger pad with a smaller backplate? im confused, but thanks for helping

[BigJimZ28]

NO need to change it
it is sized for sandpaper not a foam polishing pad
try a search... most people dont think there is a difference