It's not required on something our size, but we do have a few full scale pilots at the club who did some fly-overs, and recommended that it be done. They stated that from the air, your perspective can get a little skewed, and that it does look pretty real when getting a horizon (distant) look at it. They stated that once directly overhead, it is quite obvious it's a mini runway, but I guess there are just enough people in the air who shouldn't be.