Oh yes. It's going to be one of those threads.
http://www.wowhead.com/?talent=IAMr0RctqtcoooZxx0xM
Meant for heroics and low-end raiding, before becoming godly-geared.
1 point in Improved Healthstone because Healthstones of the same level but different degrees of spec count as different items. i.e. You can have a healthstone from a 0/2 Warlock, a 1/2, and a 2/2. Most other Warlocks will have 0 or 2 points in it.
Points are in Improved Drain Life to minimize downtime necessitated by Life Tap/Life Draining. May not be necessary, an extra two points in suppression could prove more useful.
The main objective is to get Improved Drain Soul and Destructive Reach for their respective 10% threat reductions.
I'm sure it sucks for some unseen reason. Thoughts?