this is absolutely and utterly unscientific but based on the touch test, the Pro One TL feels entirely tackier all around compared to the One CL. maybe thats why its reported apparent longevity is what it is.

both tires held full pressure beyond overnight.

laid flat side by side the 25mm P.O.TL. is substantially wider than the 25mm O.CL. mounted and rounded, it looks and feels quite wider as expected. vernier caliper is in the mail, so cant verify quantitatively.

interestingly, doesnt seem to be taller. (easy to tell because ive got next to 0 clearance on rear calipers)

cant wait to ride it.