My wired unit doesn't have cadence, and I've looked for a wired unit with cadence sensor, and I get hits, but when I click on them, they are actually wireless. If you know of any wired units, send me a link if you have one handy.

Not especially. I try to keep some plastic onboard in case it starts raining. I put the plastic over the unit and use a twist tie to secure. Minor annoyance.

Yes, and is a requirement at 9999.9 miles.

At double digit hours, mine continues automatically from zero again, but blinking the time to let the rider know the unit is into round-two.

Have not had mine long enough, sort of anticipating this.

Oh! So, it's not just me. I'm pretty sure the unit I have, is described as auto on, but that has NOT been my experience. I know statistically, it is inevitable I will eventually look down, and notice X amount of distance has been ridden without measure. This is enough to make me want to steer clear of wireless. I'd like see if others are having this same experience.

Same here. And not a minor amount. I have a wired and wireless mounted, both set with the same wheel diameter. Wireless lost one mile in 9.36 miles, as measured by the wired device, and confirmed by GPS.

This does not appear to be true of my Blackburn Wireless, but I haven't tested this sufficient to really know. I will look for this. What leads you to think this?

Thanks for the great feedback!