I like your two bobs. Alas, I am a data bigot. I still use mercury thermometers with NTSC calibration. My clocks all synch to WWV. I like to make data-based decisions.
When you ride "by ear and feel of the bike", you too are making data-based decisions. I suspect in your case, the "sensor" is better than mine.
I suspect with those people who have tachs, and me once I get one, the ear and the feel of the bike are calibrated to an extent, and one pays less and less attention to the tach.
On a previous bike, one meter I eyed EVERY time I rode, was the ambient temperature.
Sigh.
Thank you.
