One solution is diptych: forcing yourself to do two photos back to back within a minute. Then the roll can be finished in about the same time.
And I have my bulk-rolled short length film too.
I've done two rolls through the Pentax 17, and shot both as diptychs. I actually finished an entire half roll yesterday because I wanted the black and white film out of the camera.
I struggle with zone focusing because I'm not good at estimating distances. My second roll (the black and white) was better in terms of focus because I pulled out my phone and used the lidar measuring app to help approximate distance, then I just dialed in the appropriate spot based on the markings on the underside of the lens. The few images I had that were out of focus I had guessed on.



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Before pointing fingers at the camera, I shall do more shooting, this time with fresh Ilford HP5+, which I'll process myself. Camera ISO dial was set correctly, and I didn't experience any problems with inadvertently moving Mode or Exposure Compensation controls, so ..? Anyhow, here are a couple of less-bad frames. Normally, I'd like to reveal more shadow detail, but that's not possible here due to underexposure.