it pisses me off how everyone directs everyone else asking about summer setups to that cult. it's nearly dead, as with almost all other cults save a few. you'll get maybe 1 or 2 responses per day where as if you let the post be in ski gabber it will be answered much quicker.
relevant to OP:
i use turf and on my drop in (not on the transition or lip) i have plastic chicken fencing and it works perfectly with water, no soap needed. it is about 7 feet high and i can easily have enough speed for 20 ft long up/down rails, etc.