((AGI-Automatics+Specialization) - (20 - STR/3 - RC))/2 doesn't leave all that many dice, unless you really trick yourself out.
Let's assume Cyberarms with 8 AGI, 7 STR and Gyromounts, and Rating 3 Gas Vents (and ignore the fact that you can hardly use a stock when dualwielding), then that's ((8+6+2) -(20 - 3 - 2x4 - 2x3 - 1))/2 = 7 dice per gun.
Not bad, but not terrible hard to evade for anyone worth the attention, either. Well, unless they wear so much armour that they view evasion as an unnecessary agitation of their fat reservoirs.