Yes

Excellent question. Since you can start at 26% and the damage does not go to 4x when he's under 25%, I'm guessing that the damage/tick is calculated based on being under 25% on application - so even if healed back to 30% the 4X damage should continue. That's only a guess though, can anyone confirm?

The infernal has a higher DPS, and will do the most damage during the 1 minute it's active. However, with a 15 minute duration the doomguard should remain active over the entire fight, giving you a higher total damage done.

Really, their use is fairly situational. For the Infernal, I look for situations where my pet's already dead and I'm not losing anything, or when there's an achievement or enrage timer that the short DPS boost helps on. For the Doomguard, I mostly use him in DPS races or where there are lots of adds. Just be aware that both of them lack Avoidance, so both suffer in fights with lots of AoE damage.

Maybe. This will depend on how much DPS the Infernal puts out and what your spec is. Currently on live a Doomguard is NOT a dps boost for a warlock specced to the Felguard. From the 3.1 simcraft thread, it looks like a Doomguard in 3.1 will only be a dps boost for a deep affliction lock. So for those of us with some points in Demonology, the question is how much DPS does the Infernal put out for that minute, and is it greater than a Felguard or another buffed pet?

Your point about situational use at the end of a fight where you've lost your pet stands though, it's always good for that.

Just wondering now that the engineering cloak enchant has been changed to 18 spell power passive now instead of 11 would it be worth it to use that over the 23 haste enchant?

How do you other Warlocks go about making an optimal gearset (in my case, FG/Ruin for DP support)?

I've looked at resources like MaxDPS.com - World of Warcraft Gear Rankings - News (no Demo support anyways :\), and poking through Leulier's to try and find items that fill my hit to cap, while keeping my other stats to a maximum. Rawr (Rawr - Home) has been missing the Warlock section for a while and sorting through different combinations by hand seems incredibly inefficient.

Leulier's just gives me tons of errors (Not compatible with Excel 2k3?).

This is something i threw together that I've been using for a while but I doubt it's the best meshing set I could put together.

Edit: ignore the shadow crystals. Those should be the rare version gem. Also, this is assuming that spirit will someday improve DP.

Edit: Dumb warlock is dumb.

Start with the obvious BIS pieces (ie Dragon Soul trinket).
Fill in ilvl 226 pieces in every slot possible. Fill in what looks like the best itemized 213 piece in the rest.
Swap stuff as needed to maintain 2t7 and hitcap.

So I have a very general question about the hit talents. Is it ideal to get rid of them as you accumulate gear that has hit on it?My understanding is that once you get more and more hit gear you drop the talents to pick up other dps increasing talents.My question is whether the talents or the gear without hit gives you the overall better dps. For example I recently re specced and dropped the hit talents(if you check my armory you can see my spec, however im wearing gear i was using in heroics). I did this because i recently got dying curse, legwraps of the defeated dragon, and gloves of the fallen wizard.So by losing the haste and crit,(possibly spellpower as well) by equipping these do i still improve my dps by dropping the talents? Maybe im just not understanding it but imo it seems like the loss of dps stats would make the two setups very similar in dps.

This is where the spreadsheet becomes essential. What we -do- know is where the talent points can go with increasing hit from gear (up to 3/3 Eradication, 5/5 ISB, 1/3 MC). What we cannot answer for you, is -when- to do this. Your current stats (that is to say, your current gear) will always influence choices about what to do when getting a new hit piece with respect to respeccing. It will tell you if you should even bother with a hit piece if it has inferior dmg or haste, as the supplementary DPS talents you could add by speccing out of hit talents in some cases might not offset the DPS lost from lower dmg or haste.

More often than not, yeah. That maxdps set is decent (I'm basically using it minus a couple pieces), but it ignores the 2t7 bonus.

Generally if you have a well itemized ilvl 226 option, that's the way to go.