Say you’re playing a an ascending line starting on open B string to open E string, then continuing up the E string to the octave (just a simple scalar run). If you strictly keep downstrokes on beats, the string change can sometimes force two downstrokes in a row. So it can become down - down (string change) - down (on beat) - up - down.

I’m fine with the rest stroke and crossing strings, but that extra down stroke starts to feel pretty awkward at speed. How do people usually handle this?