How much do you tend to work with primes, and how much with zooms?

Mostly I shoot with zooms, as they give me the freedom to react quickly to changing situations. Switching from one prime to another always takes too much of my time: fold away the motors, take out the lens, insert the new lens, put on the motors, calibrate—it's just torturous and is simply not feasible under certain shooting situations. For example, if it’s magic hour and the camera is in a rain or dust cover on a Russian Arm, I couldn’t even consider changing the lens. I have to clarify in advance which zoom I want to use.