Mark-
It’s not that no one wants to help. It’s probably just that your particular coach is rare enough that few other members have one. And not all members spend time on the Forum, further reducing the odds. If my Monterey had a similar slide setup, I’d try to supply you with at least a photo for guidance. For example, your image seems to show waste tanks behind the slide, but on our 36’ model the tank’s are behind the stationary water bay.
A bungee to control the loom may indeed be one temporary option, but they deteriorate and can’t be the final fix. Many here would help engineer something if you could get to a rally and they could directly examine the situation. Of course a Monaco Service Center is an option, and if you’re able to get to Bend, Beaver Coach Service or Bend RV Repair would know how to correct the configuration.
Joel