I have two warlocks drilled differently. The first I've used in two very different houses: #1 is very dry, and #2 is as wet as I've bowled. I've also used the full spectrum of surfaces on my primary warlock. In house #1 I've used it at 4000 polished playing 13 at the arrows out to 8 to great success, but I've also taken it down to 500 polished/2000 (I can't decide which of those surfaces works best) and played 4th arrow. In house #2 I've used it at 500 matte playing straight up 9, to just as much success (by success in these cases, I mean topping out in the 250s and averaging around 205). I have it drilled pin down, and it makes a very smooth arc to the pocket. Things I love about this ball: it very rarely sees friction in the front, is responsive to different releases and surface preparation, and doesn't overhook on me (I have medium-slow speed and a high rev rate, so that can be a real issue).
The second warlock is stacked leverage with a voodoo full roller layout (the pin is waaaaaaaaaaaaay out). I've only used this OOB (600 matte finish). In house #1 I'm a full arrow left of the other one because it will pick up QUICKLY to the friction and make a hard left. In house #2 I usually start 3-5 boards to the left at the arrows and throw it towards the edge because I know it's coming back hard. Things I love about this drilling: it doesn't lolligag on it's way into the pocket. It drives fast and hard into the pins. On the other hand, because this ball is so responsive to friction, it requires more adjustments to the friction that develops in the front. I usually end up adjusting left for a couple boards, and then resorting to loft so I don't get too much angle in the front.
The blue warlock is my absolute favorite bowling ball I've ever owned, and if you can find one you should add it to your bag. :)