Since I can't comment, but I can create new topics for whatever reason here are my responces to your comments in the deomn thread.
Old School Terminater- I've played around with skarbrand, but I have to say he is way too easy to kill with that price tag. Maybe at ard boyz I'd include him and fateweaver, but I' probably not bringing him too ard boyz. Sure, I'll kick more ass in combat, but not if he's dead and then I get shot to bits. The thing with my list is that las cannons and such have tnothing to shoot at. The only way to kill fateweaver is torrent of fire power, the only way to kill everything else is torrent of fire power, skarbrand gives those non torrent weapons a target. Those 20 missils, or 30 dark lances now have something to shoot at as soon as I put skarbrand in.
Andrew- Yeah it's no wonder you're finding grey knights tough at 1750. I am too, but I've actually chosen the opposite approach and cut all of my hencemen lol.
Fatey doesn't need to hang around the fast elements after the first turn. Really he's just there to make sure I get into combat. If he gets shot the first turn and dies, or if he just can't keep up once I charge accross the field I don't mind because once I'm in combat I've won the game.
Heralds are just too unreliable for me, and they just aren't worth the points.
Benjamin- I don't mind if the fiends explode out of fateweavers range, because that means they lived long enough to explode out. As far as grinders over fiends, I guess to each his own. My mechanicon winning list ran 3 grinders and no seekers, but after trying the seekers I've found them to be my second wind. They're really vital to my success. It's like haveing another unit of fiends but gets better multi charges and grenades.
Crushers are still a great unit, but I just don't see them fairing well at the invitational. Good players know how to beat crushers in both combat and mobility. They also wont be distracted to shoot them since they are so slow and can only kill so much at once, and will much rather shoot the fiends. My fiends typically kill 1000 points of the enemy, my crushers would be lucky to kill 600 back when I ran 2 units of 6 of them. Skulltaker is really nice though I have to agree.