I guess my actual question was can you miss a hanger on a fixture or must you have a support on every fixture?
I would not skip a support, as John mentioned you need to come up with a way to get a support where you need it.
In my picture above out of over 600 supports only a few actually land on a truss. If you notice the fixtures are diagnal...a major pain in the rear.
Anyway we used these from Caddy...
![[Linked Image from erico.com]](http://www.erico.com/public/images/products/FF-Electrical/NorthAmerica/PH1143.jpg)
![[Linked Image from erico.com]](http://www.erico.com/public/images/products/FF-Electrical/NorthAmerica/14441445.jpg)
To install most of them you use this tool...
![[Linked Image from erico.com]](http://www.erico.com/public/images/products/FF-Electrical/NorthAmerica/IL2492.jpg)
But before we got started I sent an RFI to the engineer asking if this method of supporting from the deck was OK. He approved it and away we went.
I can tell you these are very strong.
BTW, also the fixtures in the above photos are joined with factory couplers with 4 tek screws added per coupling to ensure the fixture could not pull apart and drop.