we have some heavy duty carpet on the landing of one of our jumps,and i like it.when i have some of that "extra" time,i plan on building some for our track.i like the consistency.especially because actual shovel maintenance at our track doesnt exist.i have been wanting to build some carpet covered pvc pipe whoops sections as well.i am sure i'll stir up a pot by saying this,but i have ran on dirt for a while...why not try new things,wooden jumps,some carpet like on the jump faces or landings.my opinion is to not be scared of change,or get stuck in some closed minded rut.this is all about having fun,and if some wood or carpet mixed in with your dirt is what it takes ,then so be it.