I have not seen racing videos yet of chico 2013, so where the corner markers go will dictate the ramp angle.
as for textures, I for one do not care, aslong as you can run on the said track, dont get caught on any obstacles or ramps I could care less about how things look. You are on the track at average maybe 3-4 minutes total for an event? (basing this on a 16 truck field, qualifying passes and a full freestyle run)