The biggest weakness I see is the lack of musicians on the core knights. You can drop one archer for one musician, but I'm not sure where you could get another. Other than that, nice list! Good luck!
I used to take musicians on the knights, but I found that generally they didn't help much...
But yeah, originally I did have only 1 musician in one unit, however odds are I would have needed him in the other unit when the time came...
And Philly, it could be argued my War Altar is a War Machine...
Yeah, I kinda agree, however Empire War Machines are nasty. As are Dwarves. Other races having more than 4 War Machines doesn't bother me so much because they are generally less powerful. And I have NEVER played a HE / DE player that takes 4 RBT's...
And I am not taking a Helblaster because:
1/ I have 2 cannons already, and it performs a similar role
2/ I have an AL on WA with VHS and Mace of Helstrum who can eat super characters up no problem
3/ Last time I took a Helblaster in 7th it blew up first turn (after rolling a 6 - I only killed 3 Squig Hoppers... 3!!)
4/ I refuse to take one because of how nerfed it now is - it was risky enough in 6th - at least it could make its return.