I saw this tip in a recent magazine and it works just fine. Use a pull chain like on a single light in the attic. I went to Lowes and got 4 feet it is heavey enough that all you do is start to feed it in the hole hold the wing so that the chain will flow to the other end. It really works great and I can't believe that it was so simple. Now I don't install tubes in wings or anything it saves weight as well.
Sparky