Moving on, you are xcutting material clamped to the slider and getting ripples on the endgrain. A picture would be very helpful, so I am assuming that you are not getting blade arc impressions which you could get with improper toe out. This is easy to tell as the arc of leading edge of the blade is opposite to the trailing edge, concave vs convex.

Are you making a trim cut where only the left side of blade is in the wood? If so try to cut where you have couple of inches of cutoff and examine both pieces.

You should check the splitter is adjusted properly. You could also remove it and make a test cut with clamped material. This will eliminate the splitter as a contributor.

I am no expert but I try to remove as many contributors as possible. For grins, I would also change material type or at least try another piece of wood.

Imran Malik