Komik 160A is enough if you are easy and not pushing it
But technically you are at the boarderline, hard to say without seeing how you fly or type of equipment you are using.
- Big motors @ Hi Speeds (especially on 12S)
- if you are running torque-key servos to move the blades while at high head speeds
- You will need the 200A and Extra Current for the 200A's BEC
Best things to do is run it with your 160A first
- use the data logging
- see what your amp draw and servo voltages are
- if you are within the limits, I see no reason to upgrade
* it's "WHAT WORKS BEST FOR YOU SIR" and not always "GETTING THE VERY BEST"