I wear graduated specs with a helmet visor to bloc the sun. I'll only put clip ons on if the sun is directly in my eyes. I use croakies or rubber bands to keep glasses snug to face to control distortion & keep glasses moving down my nose. I find peering through the tops of them tiring which makes riding on the drops difficult. Oh for the days of 2015 vision.

I'm debating of a discussion with my optometrist to see if I can get a larger graduated lens with a larger area at the top of the lens, maybe as a bifocal so I can read the speedo. I don't need much more height, maybe a few mm of focus area (keeping the glasses pinned against my head really helps).