So that makes the rule posted above "16 segments of airspace or groundspace" to take some liberties with the language. In any case apparently no one is going to be issued a 20-segment e-ONE, with or without open jaws.

Someone had a problem with a paper reissue with 16 or fewer segments left to fly, where the agent trying to issue was confounded because the Process insisted on doing something with the segments already flown, and counting them in the total it was trying to issue. One of our good people here "trained" the airline agent via the OP on how to tell the computer to combine already-flown segments into one - I hope Randy gets a piece of his operating budget from the airlines' training departments, for services rendered here.

Anyway, we wonder if the same problem happens with e-tickets. In any case maybe this forum needs a sticky titled "Things you may find useful to help the airline agent over a speed bump" with things like that in it.

On my last ONE, I was issued a paper ticket because the segment SCL-AKL on LAN could not handle paper tickets. I had 8 flights on LAN, 4 out of SCL and that one was the only one that could not do with e-tickets. Strange... I ended up with quite a bundle of tickets in the end.

While as a general principle I prefer e-tickets, I just had an experience with a DONE4 that is giving me pause for thought. I have a paper ticket on BA stock ex-BKK that I needed to have reissued. Earlier in the year I missed a few segements due to time constraints (including a DFW-ANC-DFW run), but rather than cancel them, I simply never showed up. For the BA flights, I was correctly registered as a no-show (LHR-LAX), but apparently BA reservations thought I had flown several North American sectors. This was easily resolved with the paper ticket, as I obviously still had the coupons.

How would this have worked with an e-ticket? Do they have better record keeping on e-tickets? In future I'll make a point of changing dates on flights I can't make just to be safe.

BTW, BA reissued my DONE4 as a paper ticket with 12 coupons remaining.

Aside from the e-ticket question, are you saying you skipped over some segments in your ONE permanently (by no-showing them) and then showed up to fly a segment later in the coupon book, or that you merely no-showed a couple of flights, but showed up the first of them (in order) some time later.

If the former, it's interesting that BA didn't appear annoyed.

All flights remained in order, it's just that I no-showed before rebooking them. Made a bit of a mess of my PNR, as all flights were in there, both the ones I no-showed for in July, as well as the rebooked ones later in the year. At no point did I try to change the order of flights, or skip over them.

I did once skip over a flight on a CRWSTAR1, but that one was canceled properly. No ticket re-issue though, as the agent lifted two coupons at the check-in for the next flight.