"I'm wondering..." is usually followed by a request for someone else to do the working out for you. Have you considered instead following the forum rules and bringing your calculations to the table to be analysed, instead of expecting the answer to be spoonfed to you?
I'm wondering how your +Tick numbers would be affected by a Mage that had Dark Intent applied with 95-99% dot uptime (Aprox uptime of a good Aff Lock). From some theory craft I've seen in other threads we are in the top 3 dps targets for this buff. 12% Haste would make a +2 Dot tick obtainable and should modify the worth of haste on our gear even more.