So as far as FLARE into rotation goes. Is it possible?/has anyone tried? to double dip a flare into a blizz 3 tick? with UI3 up you will get a fast cast on flare making it so the flare hits then the UI3 ticks after wards will be the trick. after doing so i guess you can swiftcast flare for the remaining MP with AF3 up. umm kinda confusing and this is really speculation. i'm not entirely sure if this will be a good dps boost or not but.. here:

finished regular fire rotation and you have something below 1k mp > cast blizz 3 and spam flare > flare goes off while in UI3 > double dip happens > you come out with some MP and AF3 > Swiftcast Flare > convert > back to regular rotation.