In the pre-MoP thread, at one point I had made some lengthy posts about prioritizing TV4 over judgment... Balhale indicating that sims do show a dps increase ~.2% for following this priority... I'm wondering why this isn't considered valid enough to be listed in the guide.
Pre-raid dungeon gear gets you to in the 40k range. 0.2% of 40k is 80 DPS. T14 Heroic gear can push you to around 80k. 0.2% of 80k is 160 DPS. An extra crit or two above average produces the same DPS. One or two less and it eats any potential gain. This is to what I refer when I talk about how easy things can hide in standard RNG variance.
Additionally, there is nothing bad or wrong about hitting 5 HP. While it's entirely possible that using TV at 4 HP may cause a few less conflicts and thus grant a couple empty GCD, it's not guaranteed and it doesn't much matter. Let's say you earn 120 HP over a fight. Whether you use them at 4 HP or 5, you still can only get a total of 40 TV/Inq. 5HP just strongly (strongly!) discourages you from using another HP generator. If you impose a 4HP rule, all you're doing is hitting the wall earlier (an arbitrary wall, at that).
Not sure what other 'many things' we do for such a marginal increase. I personally recommend at least 2-3% DPS increase before anyone tries to apply something non-standard. Even at that scale it can unfortunately be all too easily hidden within RNG variance from fight to fight. Haste vs Str gems is probably even less of a gain (at ratings in OP it's 46 DPS a gem), yet folks obsess. Since folks want that detail, I'll notate the OP with your priority as a possibility.
I'm pretty sure Balhale will agree simulations are not perfect. My spreadsheet and SimCraft are not an actual fight. Just because it looks better on paper does not mean it is actually superior - there's a margin of error even if our math is 100% accurate. 1% on paper could be 3% in a fight... or it could be negative 4%.
P.S. Ignoring cooldowns, execute, and procs is throwing the baby out with the bathwater.
P.P.S. This is not an insult, just a commentary on human psychology. If text looks lazily or poorly written with incorrect spelling or grammar then people will assume the writer's math is similarly lazy or incorrect - whether or not that is true. Representation matters.
Unrelated - Light's Hammer is an excellent talent for Stone Guard. You should always have 2 targets (which should be greater DPS than ES) and the additional healing is quite nice with folks probably in states of undergear.