My thinking on the syrab was the LD upgrade, but you're right an 8 is good enough, and if someone gets to them in hth most likely there gone anyways.
I was looking at some of the arcane stuff, you like the antipskyer wargear, might be worthwhile especailly with all the space puppy's rolling around now, but anti-psyker stuff in a tourney situation is hit or miss, almost not worth it because you can't predict what your going to play against.
Steve your right with the wyche upgrade, though 1 powerweapon with the agonizer would be nice, it is pricey with the sarg upgrade and weapon, could save points by just going with another gauntlet. Only downside is the ld drop to 8. Which in hth can make a differance. Is it usally one sided in hth with wyches?
Strangley enough the biggest problem is picking which troops to take. I have the homeculus and the baron which allow wracks and hellions as troops. Was thinking that hellions over wracks as troops especially with the webway.
Like Troy said, I'm thinking about dropping down to 4 venom's w/ 3xtrueborn and 1 wrack with webway and dropping a unit of wracks to make space for more hellions or wyches for the portal.
You think 2 x5 hellions would be better than 1x 10x?