It just occurred to me now.
When I tried two year ago, it was with corded clippers, and she did not like it. I tried the next year with cordless clippers and she was fine. I thought it was the weirdest thing that a horse who had never been clipper trained just let me go crazy with them all over her face and neck.
I just bought a pair of corded clippers to do her legs (more power and bigger blades) and she was snorting and stamping her feet, very nervous.
Could it be that the wire freaks her out because of our electric fences?
This isn't a huge concern, she was a very good girl, but what can I do to make it not stressful for her?