Bryce,
I have been hanging signs from the trusses on my barn using heavy eye bolts screwed into the bottom of the truss. I have no real concerns but then again I don't have a lot of big signs (yet). If you think you have too much weight on your trusses, I would be happy to stop by and relieve you of several of your signs so that you don't have to stay awake at night worrying about it. wink

BrianH

Brian H