<chuckle>

At PBP in 2003, I accidentally zeroed my single computer around the 240km mark. That upset things well and truly until I realised there were plenty of arrows pointing me in the right direction.

Blow me down if I didn't repeat the zero mistake on the Great Southern 1200 a year later! That made things a little trickier because there weren't any arrows. At one point I was in a lather thinking I was on the wrong road because my estimations were off and I was seriously running out of time... I had to stop a motorist to ask if the next town was indeed up ahead.

I now have an Enduro, too. I haven't zeroed it accidentally yet. I haven't got the instructions, either, but I fancy it might also cancel out your trip distance readings at 1000km and revert to zero. Unfortunately, I didn't get to test out that feature at PBP last year. I will try to do so on an Easter 1200 this year... if I ever get off my butt to do some training.

[Yes, yes, I could change the reading to miles and not have to worry about it cancelling out on a 750/1200, but unfortunately, the instructions on most my randonnees are in kilometres).

I did think about running two computers because my old Cateye did the cancel-out thing at 1000km, but it just means more wires running up the fork and through the brake cabling.

I've had computers malfunction on rides, but usually it has happened after the terminals have got wet. I usually notice fairly quickly when the readings are 0.00, and stop and scrape the terminals clean to solve the problem. Occasionally, it has been after I have fixed a front puncture and I've knocked the fork sensor out of alignment.

I don't recall having problems with batteries on a randonnee. Usually the problems manifest themselves in training (flashing display) or at home (fading display). It's a good policy, however, to carry the tiny battery in your handlebar bag. That way, you can spend an hour trying to remember where you carefully placed it so it would never get lost for when you need to replace the one in the computer.

One other thing that comes to mind, is the calibration. I've tried all sorts of things, including measured distance markers on the road. I'm still trying to work out what is most accurate. And, then, that has to coincide with the organisers' definition of a kilometre/mile!