I cut my screen down. ..I experimented with different screen heights but like you I always found that standing up the buffeting stopped. ..hence my decision to cut the screen down. I decided on an amount of screen to remove. ...measured and marked it carefully. I then put masking tape below the cut line and used a brand new hacksaw blade to cut the screen. ..it was very straightforward. I used a file and some fine wet and dry to round off and smooth the cut edge. It works for me! Steve