Originally Posted by
azrieth
The most haste you want is the 2589 break point- less 3% if you have DI, less 4% if you have di AND play a goblin. After that, mastery becomes priority #1 (arguably even before, but in current gear levels there is no reason not to hit it). If you are full BiS (which I'm going to assume you aren't, given that you're asking this question in the first place), you can reach the 3202 break point for imp DP without using the sub-optimal bottled wishes, which is likely a dps increase on movement intensive fights such as yor'saj, zon'ozz, and blackhorn.
The reason imp DP doesn't improve until 3202 haste is that it isn't effected by the 5% spell haste buff and the 3% from DI, btw.