Bigger is better.
6.7% ?
Doesn't sound like much but it sure feels like a lot and I like the feel.
I am jealous of the 6 pot guys so I have to make up something to make me feel better about my 4 pots.
Seems like lateley I am singling out you Tony. That's because I am my friend !!
By the way, an increase in pad size is a reduction in pressure per square inch and results in less friction.
That is why skinny tires are better in the winter. Higher pressure will dig down through the snow. Wide tires will ski on top of the snow. Same force (gravity and the mass of the vehicle is constant) yet more friction with less area.
Sorry to tell you this Russel but your logic is backwards, Dan explained it correctly.
Think of it this way, put downhill skiis on and have someone push you across the ice. Now put on football cleats and have that same someone push you again. Less surface touching the ice, much more friction yet the force stayed the same.
Drag tires are different in that the engine can easily overcome the coeffient of friction of skinny tires and there will little no weight transfer (as they quickly melt) from the front of the drag car to the back wheels. Once you go to a wider tire the initial coeffient of friction is the same but now the weight (increase in force) transfers from the front onto the rear tires. This is why drag street pro cars use super soft front shocks. It needs that increase in force which is like installing six pots (or a bigger master cylinder)