Personally, I'm gonna wait until the motor combo comes out. I'll then use the motor on the Revo to replace the 9XL, and the MMM ESC in my Hyper8 buggy to replace the Quark (only for space and wire routing reasons). And the order will go directly to Mike...
The sales lady I talked to said that the production run would be May 5th to 9th. And shipping the week of the 12th. Just glad I ordered, 22 minutes on hold and the lady said the phones are ringing off the hook. They may be sold out by May!