19/21/21 was bored and messing around with the talent calculator and came up with this hybrid build. it's basically the 0/21/40 build but without conflag, backlash or SnF.
the reason why I'm curious is because though the SB nuke damage is decreased a bit, the dots get a fairly sizable buff. especially for bosses when you're using amp.CoD every 3min (so up to 3 times in 1 boss fight generally). the 2/2 imp.CoA is simply there 'cos I don't need more hit and it'd help with increasing trash dps. though for people who need more hit they can go into suppression.
the spell rotation would be the same as a destruction build, though obviously without conflagorate (supposedly you're not meant to use it anyways, though it's a personnal preferance)
another reason for this build is that I remember in one of my many banters with loki he brought up about how large of a dps increase you gain from having an instant cast COR instead of 2sec cast one as well as that you can get nightfall.
I've gone this spec now, gonna try it out in a few raids. i tested it on Dr.Boom and I held out at 1050 dps for about 6-7minutes before going competely OOH & OOM. to be honoust though I can't remember what my Dr.Boom dps was for 0/21/40 so i've no idea if this is an improvement until i get into an actual raid.