Regolith: Which way?

Might seem like a silly question, but I wanted to make sure that were testing correctly. It would be bad (understatement) to arrive at competition with incorrect testing!:smiley:

On the Regolith, which side (pebbled or smooth) goes on top?

My impression was Pebbled, Iā€™m not 100% sure, but the stuff we got the bottom seemed no where near as slick as the top.

Edit: top being pebble side

Pebbled side up, you can see it in Kickoff pictures and the animation.