Subpixel antialiasing can have more chroma aberrations at the horizontal edges, particularly at high frequencies. You night wish to stop it if that is a problem

Subpixel antialiasing can have more chroma aberrations at the horizontal edges, particularly at high frequencies. You night wish to stop it if that is a problem. Personally, I cheer the day when we all have 300 dpi displays and the problems melt away.