I have a gooseneck brand trailer with rumber flooring. It gets very slippery when you haul for a couple of hours. I took a bull to test, and he urinated and defecated several times along the way. By the time I got to the test station, he was sliding around like he was on ice. I now have a cattle panel nailed to the rumber and that works well.
It is very expensive. I bought two 12 by 8 boards of it to put in my loading shoot. I think it ran about $00. It had grooves, but they run the length not acrossed the plank, so that doesn't help with traction. The chute is also very slippery, and I need to put those metal strips back on it.
It will last and I like the material, but it is slippery, despite what others have said.
Billy