Yeah that lead pole can DEFINITELY hurt something. That's my biggest nightmare (other than losing an engine over a busy downtown while towing). The problem with helicopters towing banners is that when you go too slow the bottom part of the banner folds under and you can't read it. Yes you can tow bigger banners, but most banners tow ideally around 50 mph (for best readability), so might as well use a cheaper fixed wing.