I like using the 4" pads a lot because it allows me to be more precise. I rarely use 6.5" pads, I think they're too big in my opinion but the 5.5" pads are just the perfect size. Although I don't see too many vendors sell 5.5" pads except here
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Is it faster to polish using lets say a 8" pad?

Is it faster to polish using lets say a 8" pad?