I am sick of going out on the roof each time we park under trees, especially those dam pine trees. What I am trying to figure out is what people are doing for slide toppers? Should I be concerned about screwing into the sidewalls, structure or possibly causing a leak. The other question I have is does the topper happen to put any stress on the slide? How do the toppers work in wind, can you possibly retract them separate if they start flapping?