Hey, well I use glyphs of Kill Shot, Serpent Sting and Chimera Shot.
Since Chimera Shot has a 10 sec cooldown and the glyph reduces it by 1 second, that means for 10 Chimera Shots you will get an extra one (at the cost of a GCD of course) therefore you can simply assume 10% damage increase on Chimera Shot, which you compare to a 10% damage increase on Steady Shot.
The glyph of Chimera Shot is definitely way better than Steady Shot. I will use my logs from a Naxxramas Patchwork fight as an example to prove that (using Chimera Shot Glyph):
http://www.worldoflogs.com/reports/l...9/?s=360&e=605
As you can see here, even if you cut the combined damage of Chimera Shot and Chimera Shot - Serpent in half, a 10% damage increase on that combined damage would still be better than a 10% damage increase on Steady Shot.
As for the glyph of Kill Shot, it's definitely better than Steady Shot glyph BUT only at the moment! When you drop Arcane Shot from rotation it might be better to use Steady Shot glyph instead, but I suppose I'd need some math to confirm that statement.
Either way, SSting, KS and CS glyphs seem to be top for Naxx gear.