I need some help in deciding which piece of gear is the best off piece of t10 assuming that the 4 piece works out to be something we would like to have. (as for me i think it will be something i would like to have)

The options i think are

Deathwhisper Chestpiece - Items - Sigrie
Shoulders of Frost-Tipped Thorns - Items - Sigrie
Leather of Stitched Scourge Parts - Items - Sigrie
Sanguine Silk Robes - Items - Sigrie

Shoulders of Frost-Tipped Thorns - Items - Sigrie
Sanguine Silk Robes - Items - Sigrie
Sanctified Lasherweave Pauldrons - Items - Sigrie
Sanctified Lasherweave Robes - Items - Sigrie

If you take Leather Shoulders and Tier Chest you gain 20 Critical over 20 Haste, With Red+Yellow=7SP Socket bonus and Yellow=5SP Socket bonus.

If you take Cloth Chest and Tier Shoulders, you gain 20 Haste over 20 Critical, With Red+Blue=7SP Socket bonus and Red=5SP Socket bonus.

You gain more stat weight off the Cloth Chest and Tier Shoulders, and more SP in sockets if you fill bonuses. You would need to be allowed to loot the cloth though as a leather wearer.

Am I reading something wrong or aren't [Vestments of Spruce and Fir] better than Sanguine Silk Robes?

While looking through the loot table, I never thought to look at the badge gear. I would agree with you there. Easy/Guaranteed to be dropped, and you won't ninja anyone's cloth gear. The only downside is the extra badges. Your running 95 (Head) + 60 (Shoulder) + 95 (Legs) + 60 (Hands) = 310 Badges for Tier gear. I just spent 30 on the Idol, and the linked chest is 95. 435 Badges for 5 pieces plus the Idol. As of right now, you can get 14 (Daily) + 5 (Weekly) +8 (25 man) + 8 (10 man) = 35 badges a week. +6 from the new dungeon quests. Badge grinding for tier is getting old quick

You are assuming 4T10, whose value is really far from determined. It could be anything from bad to basically must have. The forced inclusion of 2 crit pieces isn't helping, either, although that might prove to be an issue regardless since for instance there wasn't any cloth or leather helm without crit.

Hey folks, just looking for some quick input to help me make a decision.

I'm currently wearing [Robes of the Shattered Fellowship] and the [Stormrage Crown] and 3/5 T9. Now the problem I'm having is this...

Do you think it's worth it to 'downgrade' a piece there to 4/5 T9 for the set bonus? I'm having some issues deciding whether or not the set bonus is worth it, with my current itemization. Reading the tooltip, it sounds amazing, but with my current gear, it's not like I'd be expecting to see RJ crits popping up everywhere.

I'll probably pick a piece up (helm, most likely) and keep it in my bags to test it out (personal preference and all that), but I was just wondering what the community thinks, and what the general consensus is.

For me, rejuv makes up 33-50% of my healing. With a 25% crit rate, it's worth ~4% raw throughput. This is far more than some minor stats on any one item will give you.

This calc can show how much a stat is worth at your current gear (can also tell how much a talent is worth with your gear).
TreeCalcs: WrathCalcs, respecced

Even with a lower crit %, say like 15 UB, you will notice rejuvenation crits popping up everywhere, so it is not what you would expect. Use the blizzard combat text for healing in a raid sometimes, and you would be amazed at what you see.

So yes, get the set bonus, it is amazing! In my opinion.

Just posted this over in the healing forums, thought it might be helpful here:

The T10 4 Set and You:
Warning, wall of math inc:

A 2% chance per tick, with 6 ticks, is not a 12% chance to proc. In fact, the chance that it will not proc at all is

(.98)^6=88.58%

While this does leave a close to 12% chance to proc, this 11.42% also includes the possibility that it will proc more than once, the chance of the various number of procs is:

(.98)^5*(0.02)^1*(6P1)=10.85% chance of 1 proc
(.98)^4*(0.02)^2*(6P2)=0.44% chance of 2 procs
(.98)^3*(0.02)^3*(6P3)=0.01% chance of 3 procs

Chance of anything more is obviously even more vanishingly small. This being a binomial distribution, the average procs per cast is pretty simple to work out:

Average # of procs: 0.02*6 = 0.12

Note the difference here, this means that each rejuvenation, on average, will proc 0.12 more rejuvs, not that each rejuv has a 12% chance to proc a new one.

Assuming rejuvenation is typically 55% overheal, and assuming the proc (since it will likely not be "smart") will be 75% overheal, then a procced rejuv on average is:

0.25/0.45=55% as effective as one you cast.

This means that if you cast about 100 rejuvenations in a fight, you will proc about 12 free ones, at 55% effectiveness, for an increase of:

12*.55=6.6 "casted" rejuvs, which in this case means an increase of 6.6% to our rejuv healing.

If rejuv is 30% of your healing, the set bonus is then worth about:

0.066*0.3 = 2% Increased throughput

Compared to 4t9 this is very weak, but is nonetheless about what you would expect from a set bonus.

If you want to substitute in different numbers for some of the estimations I made, the increased throughput you get will be

12*(P/C)*R

Where P is the proc's overheal percentage, C is your average casted rejuv's overheal, and R is your % of healing made up of rejuv.

It seems like a fairly good set bonus then.

Assuming 25% crit, 4 piece T9 is 12.5% increase to rejuv (before accounting for overhealing).

Edit: the only issue I can see is if it does not prefer targets without rejuv, then it will simply refresh the buff, thus losing effectiveness.