So, I'm planning a trip to the planet Lundunder next session. Firearms are strictly prohibited in the 'hanging cities' due to fear of breaches (as per Inquisitor's Handbook), so Landrians have developed elaborate knife-fighting techniques over the centuries- similar to the way Asian peasants invented the Martial Arts to compensate for their lack of weapons in areas plagued by bandits.
Sounds good, but in looking over the melee-based Talents in the Core Rulebook, not a whole lot is jumping out at me for representing 'deadly knife-fighting arts'. There are extra attacks and parries, of course, but I'm not seeing anything other than Crushing Blow (+2 damage) and Street Fighter (extra Critical damage) that would make knives more than just a joke to heavily-armoured PCs, even if they have the 'mono' upgrade.
Does anyone know of any existing gimmicks that I can use to make knife-fighters a legit threat, or do I need to house-rule a new Talent? (Like, say, Landrian Knife-Master: the character adds his Agility Bonus to a knife's Penetration value...?)