armory: http://eu.battle.net/wow/en/characte...lebel/advanced. I might be in disc spec, but i use the same gear. I've done this on a dummy, though I doubt that the minor mana gain from buffs could help.
basically, what I do, is open up with VT, SWP and DP in that order, then cast MF till I get an orb and 5 DE, then cast DA, MB, recast all 3 DoTs so that they benefit from DA and ES. then my priority goes VT>DP>MB(1+orb)>MF. when I reach 35% mana, i cast SF for the mana return.
what happens is that around the 1:40 mark, i can barely scrape by till DA is back available, I cast it, and around the 2:00 mark, i'm oom again. I got no choice but to cast dispersion, which brings back 1/3 of my mana, which means I can at max get 40 seconds extra. at this stage, DA still has over 30 seconds, SF has around 2 minutes, and dispersion is only just used. the only thing I could consider is using dispersion around the 0:30 mark, so it's up again around the 2 minute mark (using the glyph). or am I missing something else?