Would this be competitive in a tournament setting? Why or why not? Any suggested tweaks?

Come on guys. Why wouldn't this squad be competitive against Dual IG-88s? Or would Brobots destroy it?

Guri doesn't like Veteran Instincts....I realize you are trying to bump her above 6, but she doesn't need it. Predator or Push the Limit are best for her. Possibly outmanoeuvre too if you have advanced sensors, because then you can boost or barrel roll before s-loops to gaurantee a position out of arc. At the least, drop autothrusters to get Predator (push the limit is also only worthwhile if you have advanced sensors). I know, I know, everyone goes on about how awesome autothrusters are, but I'm not sold on the idea that the Star Viper needs them. Interceptors? Sure, but not so much star viper...

I disagree strongly:

Guri already tends to get a free focus and then her usual action when she has higher PS. no need for PTL. A great EPT for her is VI to get above 6.

I think this will be a great list.

Nice 2 Zs. Great blockers. I might steal this.

Also kudos for the single IG instead of 2.

Guri also likes Lone Wolf. Forgot that one.

Veteran Instincts on Guri is more a downside than a bonus vs. IG's. They fly fairly predictibly once you understand their dial. Its pretty easy for her to keep them in arc. All vet. Instincts does is remove your block options. Besides, once Guri is behind one IG88, she can pretty much stay there and keep range 1 comfortably until its dead. Advanced Sensors + barrel roll or boost to line your s-loop up in a position that gaurantees getting behind an IG88 is really powerful. If you have Push the limit, you now have a TL + Focus at range 1. If you have predator, you get that re-roll + focus. If you have outmanoeuvre, its the focus and -1 green on the robot. All of these mean that bot will be dead in short order, because the rest of your squad will likely have shots too.