Interesting takes. I appreciate everyone's thoughts and ideas which have been shared for the most part. It's also what makes cycling fun: modifying based on needs/personal preference.

I am a Clyde, and I am not as young as I used to be. And I ride fixed gear a ton. I put the widest supple tires that fit on almost everything. That ranges from 25mm to 45mm on my newest bike.

The 30-35 is probably my favorite. You can still find some lightweight tires in this range, and the width makes for still fast rolling as well as versatile for most terrains outside of the extremes. I don't find the ride dead on 30s compared to 25s. At the appropriate tire pressure of course.