Thank you for making this build. The last build that I was using was the carpet bomber witch and it was fun. In fact that build was the first build that I took all the way to end game mapping. Now that build appears to be dead as of patch 2.0. I do have some ideas that I want to try out myself to see if I can bring it back to life with a few adjustments to the build. If it is possible and I actually accomplish it before someone else does then I will need help in making a guide for it since I am not good at making build guides for this game.
If I do accomplish I will post the skill tree that I am using along with my gear and some explanation about the build as best as I can do. Hopefully that will be enough information that will allow others like you to see what I have done and why it would work, that is if I can make it work.
I have a level 34 witch using this build and I can see there is some flexibility in the build as it is right now. I have decided to take quick recovery earlier than listed, along with a few extra nodes that I will spec out of later to handle mana issues. Otherwise it is a great build that I am having fun with.