Not done it but don’t go with the grain, Probs around 30 – 40 degrees, and at least 2 different grits but not less tha 100 grit with the first, not less than 180 with the final sand.
That’s the principle anyway. By Sand-glider do you mean something like a large pushable belt-sander?
Why are you Sanding? Just for cosmetic reasons or is there a residue or glue of some sort you need to get rid of?