Nstream Dual configuration concern

I have setup a test Nstream Dual connection for the first time and it works, but do I need to set each wireless card’s NStream to enable and Framer-Policy to exact size? I set the Framer-Policy to exact-size when I initially configured the Nstream Dual connection using this command:

[admin@MikroTik] interface wireless nstreme-dual> add framer-policy=exact-size

After I did this I noticed in Winbox that each wireless card had their policy set to none and did not have Nstream enabled. So I changed both settings, but didn’t notice any changes. Do all Nsteam Dual configurations override the wireless cards’ configurations?

from manual:

Many parameters from /interface wireless menu are ignored, using the nstreme2, except:

frequency-mode 
country 
antenna-gain 
tx-power 
tx-power-mode 
antenna-mode