Does HoS continue the 30% dmg reduction if I am dead? I am thinking Chimaeron, where I would pop it on the tank right before the burn phase starts. Having the tank alive longer makes more sense to me than having my dps.

Trinket BiS
Trinkets | Best in Slot Holy Paladin Resource

This list puts heroic solace of the fallen above every heroic 5 man trinket and Fall of Mortality over every other 359 trinket. I have a Fall of Mortality and I can guarantee you it's a PoS. If this list is accurate, then I need to re-evaluate everything I know about Holy Paladins. Core of Ripeness and Fall of Mortality have the same intellect and the same spirit bonus, just over different intervals. Core of Ripeness is use for 1926 spirit for 20 seconds every 2 minutes and Fall of Mortality is 1926 every 1:30 for 15 seconds. Both of these have the same uptime from a glance, but I've found that FoM only has a 14% uptime whereas Core of Ripeness will have 16.66% (20 seconds/2 minutes) at minimum if used early on in the fight and then on CD every time. Jar of Ancient Remedies factors out to be upwards of 900 spirit last time I checked, and Tyrande's Favorite Doll is BiS among all 359 trinkets. (4200 mana/60 seconds=350 mana/5 seconds at a .6 spirit->mp5 multiplier=~583 effective spirit).

Tyrande's Favorite Doll: 321 int and 583 spirit
Core of Ripeness: 321 int and 321-385 spirit (at 16.66%-20% uptime, 20% uptime can be achieved by using this trinket early in the encounter as opposed to 2 minutes in)
DMCT: 321 int and 400 spirit
Fall of Mortality: 321 int and 270 spirit (at 14% uptime, which is what I had using this trinket on raid encounters)

I honestly don't see how REGULAR FoM is BiS AMONG 359 trinkets. I don't think that site is accurate in the least. There is math that shows Jar of Ancient Remedies to be equivalent to 900-1000 spirit passive if used on cooldown and is regarded as best in slot by many holy paladins (excluding Tyrande's favorite doll) for ilvl 359 trinkets.

If you just look at 372 trinkets, Shard of Woe is clearly best in slot (assuming 405 mana saved per 2 seconds, the passive equals around 1.8k spirit, not even worrying about the use effect). Shard of Woe and Heroic Jar of Ancient Remedies are *probably* best in slot, since I consider regular Fall of Mortality to be one of the worst epic trinkets and have the math to defend that.

I don't think that site is necessarily ranking the trinkets it's just listing the available trinkets.

Just because it's higher on the list doesn't mean it's better than the trinket below it. Like all gear people should make their own decisions on what's important to them and their own playstyle and current gear.

What makes the alch trinket interesting is the +40% effect on mana potions. As MMPotions replenish 10k mana in average, its a 4k increase. The spirit it provides is linear with the fight length, namely ~555 spirit at 1 min. In my limited experience at Cata raids, most boss fights last for 6-7 minutes, which comes down to about 80-90 spirit, assuming you use pots.
Adding the 194 haste is quite nice, but it isn't even near to Tsunami's 400 spirit or the BiS trinkets in my opinion. It's a nice, cheap addition to the mix, nothing more.

Jar: 6420 mana/120 seconds = 267.5 mana/5 seconds at a .6 spirit -> mp5 mulitplier =~ 160.5 effective spirit from the use. Add the stacking spirit that can only be up 75% of the time if you want to use the use (0,75*515=386.25 spirit) and Jar will give you 492 average effective spirit. If I apply your own Doll math to the Jar, I conclude that you overestimate the Jar by half.

I will use 0.62 mp5/spirit (5500 raid-buffed Intellect) which I think is more realistic at this gear level than 0.6 mp5/spirit (5148 Intellect).

Using Jar every cooldown provides 6420 mana every 120 seconds = 267.5 mp5. The buff effect provides 515 spirit when fully stacked. Assuming it takes 15 seconds to stack, the effective uptime is (120 - 30 - 15/2) / 120 = 68.75%. Altogether that puts the Jar at 267.5/0.62 + 515*68.75% = 785.5 Spirit. Even at 0 second stack time - which is reasonable if you monitor the cooldown and use LoD to instant-stack the buff - it's no more than 817.7 Spirit.

As an aside, using the Jar on cooldown is better than just leaving the stack up. The use effect is equivalent to 267.5/0.62 = 431.5 spirit, so the break even point for using being better is when 515 * uptime >= 515 - 431.5. That requires an uptime of about 16%, which translates into 16% * 5 / 75% = 1.1 stacks on average over the 90 second period during which it is possible to stack the trinket. Realistically, if you are healing frequently enough to keep the buff stack from falling off it is always better to use the trinket on cooldown.

I think the larger question that must be answered to determine the relative worth of a pure regen trinket like Jar is, what does regen really do for us? Assuming that raid geared paladins have enough regen to cast Holy Radiance and Holy Shock on cooldown spamming HL in between, more mana only allows us to (a) upgrade more Holy Lights to Divine Lights, or (b) maintain the same casting strategy with additional haste. A very large portion of our healing (mostly handwaving here until someone does some log analysis) doesn't really scale with regen.

Check your units here: mp5 * mp5/spi = mp5^2/spi. You want to divide by 0.6 instead of multiply.

The values from that post are not what I would consider 'correct'. Taking the numbers for 'High End' since they are close to my paladin's.

Int	Haste	Crit	Mastery
142	107	108	77

When my spreadsheet gives me (rough numbers, not at home):

Int	Haste	Crit	Mastery	Spirit
15	6	5	3	7

Granted these are not an authority since it is still a work in progress.

Can you clarify how you evaluate the procs on Tear of Blood and (heroic/normal) Fall of Mortality? What spirit to mp5 conversion did you use for this work?

According to our druid who tested Fall of Mortality (Heroic) ICD with blanket hots, it's 75 seconds. Considering that theralion's mirror - Wowhead Search has different procs between normal and heroic mode versions, I think we can conclude that heroic FoM has the wrong proc. Make sure you report that, US people.

I should not do (even basic) math without a pen, paper and units, thanks for the correction.

About the Jar, you get 400 spirit (in comparison to Tsunami) or 300 spirit (in comparison to the Doll) while losing the 321 intellect from either. I don't think that is worth it, I consider intellect to be more than 25% better (necessary to overtake Tsunami) than spirit per point due to the increase in throughput it provides on all our heals, not just upgrading HL to DL. In my opinion, Jar is only good for 4.06 Mana Tide Shaman.