I'm afraid I may run into this same problem.....
Some of these may help.
I used to use the ratchet hangers to hang my lights but I went to Home Depot and bought (6) 3' lengths of a small chain and mounted these to my tent cross members using zip ties. Then I got some 'S' hooks and use these to connect the lights, using the mounting cables to the chain and it works great. Very easy to adjust as well as I gained about 4-5 inches for height. (I didn't like the fact of the ratchet releasing and smashing the light(s) down onto my girls)
My next step will be not using the cables at the top of the lights but maybe running picture wire through the fasteners and then finding a way to hook them to my 'S' hooks. This should gain me an additional 5-6 inches. I just need to make sure I leave enough room for air to get to the fans.
Using these methods, I'll gain almost another foot.