I was ignoring deep wounds because I didn't have it in my spec.
I'm not saying HT is worth using for every spec.

Your spec may work for you and your guild, but it's not efficient.

I did a little work in Simcraft and at least for my toon it's worth keeping Rend up if SS on CD, and its worth using SW>CB in place of Rev/Dev as long as the Rev/Dev will not shorten the CD of SS. I found the following to give the highest DPS at both low incoming damage and high incoming damage witha 8/2/31 spec skipping Gag Order, Imp.Victory, Safeguard, and Thunderstruck

actions+=/heroic_strike,if=rage>=50
actions+=/inner_rage,if=rage>=85
actions+=/berserker_rage
actions+=/shield_block,sync=shield_slam
actions+=/shield_slam
actions+=/thunder_clap,if=dot.rend.remains<=3
actions+=/rend,if=!ticking
actions+=/revenge,if=cooldown.shield_slam.remains>1.5
actions+=/devastate,if=cooldown.shield_slam.remains>1.5
actions+=/shockwave
actions+=/concussion_blow
actions+=/revenge
actions+=/devastate
actions+=/battle_shout

At high vengeance HT is too powerful, both DPS and DPR wise, for DW to matter. SnB on 4th GCD does not cut it, its just short.

Obviously.

I'm generally find i'm fighting not to rage cap anyway so making SS free is not something that really tends to concern me
If I Use Airoword/WarTotem's Spread sheet at max vengeance HT is ~16.7k, a white swing is 5.2k, giving a net damage if i time the HT to fully reset my swing time of 11.5k which from a DPE is just below Rev's DPE of 12.9K. From a TPS stand point however HT is a lot better due to it's innate 1.5x damage as threat modifier, Again going off the spread sheet HT has a TPE of 125k, white swings have a TPE of 26.1k, so a net TPE of 98.9K which is far above Revs TPE of 64.6k ans Dev's 66.3k TPEs

So under the assuption that you're in a Infinite rage scenario and are fighting not to rage cap HT can be worth froma TPS stand point if it doens't entail the delay of an HS, and from a DPS stand point as well if in addition to the previous condition, doesn't extend your swing time by more than about 40%.

If you're at full vengeance, you won't have threat problems. If you ARE having threat problems, then you're probably getting salved by accident or something.

To cover DPR part, Dev's cost after SnB correction is 9 rage. While half a melee swing is worth about 6-7, meaning HT costs less rage.

Petit, very simplistic version:

1st GCD: SS
2nd GCD: SnB proc fishing (dev/rev)
3rd GCD: SnB proc fishing (dev/rev)
4th GCD: fillers (HT, CB, SW, dev)

Then there is also BnT to consider that varies greatly depending on your raid composition and talents. You won't go too wrong if you just treat it as a high priority filler in the last 6 seconds in most cases.

Assuming you've gotten a 378 weapon and above maybe 14k AP (30% vengeance for my toon)

1. Shield Slam
2. Refreshing a Rend with <3 second left via BnT
3. Revenge if an SnB proc will shorten SS's CD
4. Devastate if an SnB proc will shorten SS's CD
5. Putting Rend up
6. Shockwave
7. Concussion Blow
8. Revenge
9. Devastate

while squeezing off as many HS's as you can get without interfering with the above. IF you're fighting to not cap out on rage feel free to drop Revenge from your priority, its reage efficency is compromised if you're gonna be at 100 rage by the end of the GCD

For max TPS SW and CB swap priority

Blood and Thunder is not considered an efficient end-game raiding talent, as the points are better spent elsewhere for single-target threat mechanics. As such, your priority will change a little.

With the 2 set, SS scales at 0.792*attp most of the time (losing a tick of combust every time SnB procs and is used more than twice in a row)

Conc blow scales with 0.75*attp

I have a hard time believing that a devastate a gcd after a SS is worth it due to both how close in damage conc blow is to SS and due to have far off in damage devastate is relative to both.

Am I missing something? Maybe referring me to the post about the math behind SS fish fish filler could help me.
I have a really hard time believing that if every SnB potential happened, that the highest dps a prot warrior could do would be completely devoid of any shockwaves and conc blows.