Don't need to see a picture of either one of them again. The Andersen is simple triangular trusses. This is the most efficient way of supporting a load. The B&W is made of truncated triangles and bent plate pedestals. Because it's in multiple pieces it has to be heavier. I don't doubt each will do what it's rated for. If either coul rate their product higher they would.
Neither seems to be failing in service. One is elegant in its simplicity and one is beefed up where it is needed. The B&W is the Duramax with lots of moving parts where the Andersen is the Cummins with only one pivot point.
I'm not a "structural" engineer, but have been making a good salary with my engineering degree since before IBM introduced their 80286 line to make the 8086 machines we were using obsolete. Gore may not have even dreampt up the internet yet. :)
