Set out below is a recommended process for general resurfacing maintenance of the red lines on the dirt jump pad, and can be performed on landings and transitions. For lips, a more precise approach may be required, using shovel compaction rather than plate compaction. This process is useful after rain/drying events that have caused the trail surface to become unstable ("fluffy") . During hot months, this can require overnight soaking.
Liberally soak in the surface. This should be done gradually, so as to avoid any water runnels. During hotter months, this should be performed in the final hours of daylight (otherwise water will evaporate rather than penetrating)
Allow time for the water to soak in (ideally overnight, with the following steps performed the following morning).
Once the surface is dry enough as to no longer be sticky, proceed with plate compaction all over. For some features, slings may be required to compact upper regions of landers. The compaction should not create any dust, and should leave a consistent hard-packed surface. If there is too much surface moisture, red dust can be swept from transitions and used as a lubricant. If there is insufficient deep moisture, stop and return to step 1.
There may be a need to slap/pack small regions manually to repair damage.
Once compaction is complete, wet down the lander, and throw dry red sediment across surface, aiming to achieve a thin layer all over. A good technique is to throw with a shovel almost parallel to the surface.
Use a broom to gently sweep the dry sediment into the surface. The goal is to achieve a smooth "brushed" look.
Gather excess materials at the base of the surface, or otherwise in a convenient location.
Repeat steps 5 to 7 until a desired finish is achieved. Watering should be gentle on these repeat iterations, so as not to dislodge the new layers of sediment.
Remaining excess material may be used for another surface. However, if the material is predominantly small rocks with minimal fine clay, that should be swept into ruts and the like off the riding line, and compacted into place.
The surface should be lightly watered, and ridden in to achieve compaction via tires. Plate compaction can be used if there is sufficient moisture and bonding to achieve a smooth surface.
An example is shown in the videos below.
When doing this work, be sure to pay attention to flat bottoms as well as lips/landers. All riding surfaces should be kept smooth and compacted.