I had a similar problem when i would ADS, but mine used to point towards the floor, so the chap who i was aiming at would have plenty of time to empty my brains from my skull. What i did was trick my Wii. I have the sensor bar located just below my TV screen, and this was how it was configured in the settings. so what i did was keep the sensor bar where it was, but changed the configuration so the Wii now thinks that the sensor bar is above the TV. Now, i have harmonious ADS, and a greatly improved kill score. in fact, even i can even merrily do "from the hip" kills with a sniper rifle, in those surprise close combat situations.