I just realized, thanks to comments, that in my previous post Solo Hunter Spec I omitted to describe the glyphs that I use for my Beast Mastery 55/15/0 build.
So here's the updated spec, along with the glyphs that I find most useful for Beast Mastery. Unfortunately, it doesn't seem that BM hunters received much love in regards to glyphs.
Glyph of Hunter's Mark - Perhaps it doesn't seem very useful but since I use Hunter's Mark for each and every mob (except when I'm AoE-ing), I would say that the 20% bonus to RAP is nothing to sneeze at. My level 5 Hunter's Mark now gives a 360 RAP bonus, up from the standard 300.
Glyph of Bestial Wrath - Now here's something that I like. Combined with Longevity in the Beast Mastery tree, my Bestial Wrath skill is now on a 1.14 minute cooldown. Very wicked, I'm telling you. If you're Beast Mastery, this glyph is a must. This combination guarantees that Bestial Wrath is up almost every fight.
Glyph of Mending - Another glyph that I consider essential for a Beast Master. 40% extra healing is huge. Combines with level 2 Blood of the Rhino, I now heal my pet for 2263 every tick.
Now if I could just use a 4th Major Glyph, I would give (strangely) Glyph of Explosive Trap a try. Why? Because it makes my AoE attacks even more powerful. I use Explosive Trap extensively when farming, for example, Stratholme. Since the mobs in there are pretty weak - but many - this would be a nice boost to my AoE DPS.
Glyph of Feigh Death - Slightly decreases the cooldown of your Feign Death. Marginally useful. Better than nothing I guess.
Glyph of Mend Pet - This one is a bit more useful than the previous because every time you heal your pet, it gets a bit of happiness. This means that since you're healing the pet pretty often, it will always stay Happy, translating into the highest damage possible. Also, you don't have to feed the pet anymore.
Unfortunately for the 3rd minor glyph I haven't found anything remotely useful. Hopefully there will be some new, improved glyphs in a future patch.
Also be sure to check my other articles in this series for Solo Hunters:
Solo Hunter Spec
Solo Hunter Gear
Patch 1.0.5 commentary
6 months ago