Also had to try a few things on the Wee before it suited me. Otherwise I would ride for 20 minutes and feel like I had a concussion. This was much aggravated that I'm sensitive to motion disturbances, I get motion sick watching videos of people ride if the quality of the vid is bad or there is some vibration.
I tried different screens, in the end I have a Madstad and Tuono mirrors. The Madstad makes any screen I put on now lovely. In summer I have a short tinted sports screen, in winter I have a stock screen for the protection. I've had a Givi barn door on too, great with the Madstad, not so much without. I also noticed a distinct improvement going from a mid priced Shark helmet to a Shoei Qwest. My current helmet, an X-Lite X-551 has a peak and my screen needs to be set slightly differently if I wear that. Same goes for when I wear my HJC AC-MX helment and goggles, then I have to adjust the screen a bit differently again.
IMHO most buffeting is caused by the angle and height of the screen RELATED to the rider's riding position and helmet. This combination means every rider has a different experience on the same bike.
Then there's always the "other" solution: if the screen bothers you, take it off.