1650 List - vs Grey Knights

Hello Dark Kin,

I'm in the process of lining up a game against a Grey Knight player, and this is the list I'm thinking of taking (when the stars align and we're both free on a weekend)
A few units in here are stuff I've recently painted and really want to try out (Voidraven and wyches) and most of the rest I've used before. Except the Culexus.
I wanted one Razorwing for AT and one for anti infantry, but i think I have anti infantry covered so probaly run both with DL and no SC.
Voidraven is a source of AP2, and with my other flyers should let me dominate the skies.
The Culexus should mess up GK pretty bad, I'll infiltrate him, then blast forwards with my boats to distract and mess up opponents target priority (hence all the NS, lets me get close and Jink for all I'm worth)
I've never faced GKs before, but I seem to have an idea that they're primarily a infantry based army with expensive troops. Any other tips?

HQ
Sslyth - Venom with Dual SC
90

ELITES
Trueborn - 5 Trueborn with 3 blasters and a Dracon in a Raider with Nightshields, Aether Sails and DL
190

TROOPS
Kabalite Warriors - 10 warriors in a Raider with Nightshields, Splinter Racks, Aether Sails and DL
175

Kabalite Warriors - 10 warriors in a Raider with Nightshields, Splinter Racks, Aether Sails and DL
175

Wyches - 5 wyches with Heka+haywire and Hydra Gauntlets in a Venom with dual SC
135

Wyches - 5 wyches with Heka+haywire and Hydra Gauntlets in a Venom with dual SC
135

FAST ATTACK
Razorwing - 4 Monoscythe missiles, DL
140

Razorwing - 4 Necrotoxin missiles, Disintergrators and SC
140

HEAVY SUPPORT
Ravager - 3 Disintergrators
110

Voidraven - 4 Implosion missiles
220

OFFICIO ASSASSINORUM

Culexus Assassin
140

Total - 1650
(I made a list on BattleScribe, so points work out, but I wrote this on my phone)

Also just realised I don't need the Dracon upgrade for my Warlord as I'm taking the Hekatrix.
So spare 10 points now.