I really like tech that counter ships flanking the YV. I've had several games where a lone 2 attack dice ship was able to take out a YV-666 by getting on its tail and dogging it to death.
So:
- Anti-pursuit lasers: when a ship gets on your tail, stall out and make 'em run into you
- Ion projectors: same idea, different implementation
- Feedback array: if you get too close, I zap you! Combos with the APL or IP above
- A ship with wingman: indefinitely stall by running your wingman into you to keep removing stress (stmack's idea)
- Intelligence agent + maneuvering fins: shake that annoying tail
Sample list: Slaver + HLC + K3 Droid + Intelligence Agent + Outlaw Tech + Feedback Array + Anti-Pursuit lasers, Black Sun Ace (Kihraxz) + Wingman + Glitterstim, Black Sun Ace + Crack Shot + Glitterstim
Probably not very competitive, but fun to play! And you get to say "Crackstim" or "Glittershot" when you pop the 'stim and Crack Shot in the same round :-)