One thing manufactures noticed over the years was that when people used the splitters in normal straight cuts it worked well but it’s biggest downfall came when contractors wanted to do cross cuts. What would happen is that people would remove the splitters to make the cross cuts but then forget to fixed them back in place. One brilliant table saw safety feature is the riving knife. The Riving knife is attached directly to the blade mechanism, this allows it to always be attached not matter where or what angle the blade is.
Having only owned saws with cast iron tops this is a new experience for me. First let me note that the right side extension is not aluminum like the rest of the top. It is steel, painted to match. The entire top appears to be powder coated with a textured grey coating. No telling how durable it will be but it does allow wood to slide easily over it. Since the top is aluminum, it lets you know that by transferring all the motor noise and vibration throughout the saw. Not a big deal really but definitely different if you are used to the cast iron absorbing much of this on bigger saws.
Move the wood to and then "through" the spinning saw blade slowly and steadily. It's alright to use your hands while you're still at least a foot or so from the blade, but once the end of the board or sheet nears the blade, you should use a pushing stick to keep the wood moving and to keep your fingers away from the blade. Even an experienced carpenter can have a lapse in concentration or a slip that can lead to serious injury.
We evaluated the flatness of the table by measuring the flatness by placing the edge of a precision ground flat bar across the table and placed feeler gauges in any gaps to measure any difference between the ground bar and the table. TBB took measurements in four directions. As the operator faces the saw, we measured the flatness at the arbor from front-to-rear; we measured the left-to right flatness at the arbor; we measured the flatness from the upper left-to-lower right table corners; and, finally, we measured the upper right-to-lower left flatness between the corners.