They have a time trial series at Munson, here in Tallahassee Florida. I sort of had my own. The guys and gals get together and kind of roll out in two groups. I uploaded my preride Strava file to get an idea where I stood. I went out with the first group.
Important note, most folks ride the loop counter clockwise. It is a two way trail and the there is an arrow that points in the clockwise direction. The loop definitely flows better counterclockwise.
The surface is undergoing a change from it's natural sand (very deep at times) to imported clay. The clay, for the most part, has been formed and shaped into berms and some bump/jumps.
The clay is much debated locally. Some say the sand was too tough for many folks. Some say the clay makes it too easy. All say that it makes it faster. The clay does open it up to more casual riders, I even saw some hybrids on the trail. The nearby Twilight trail is still in it's natural sand state for the purist. I only got a brief glance of Twilight after a wrong turn on my first CLOCKWISE lap of Munson.