The thickness of your cut will have a lot to do with the quality of the brick. A good brick can be sawn lengthwise (ripped) much thinner than a lousy brick.
The vibration from the saw blade will break cheaper bricks down.
The thinner you go, the less mortar you'll have to use to "grout" between
The vibration from the saw blade will break cheaper bricks down.
The thinner you go, the less mortar you'll have to use to "grout" between