Originally Posted by
Viajero
.... so I will bow out with a mea culpa and leave it at that.

Please don't do that .... and certainly no mea culpa needed!
I was just beginning to wonder whether my "horrendous grammar" (apparently a problem in the opinion of one FT poster, in another thread) was so incomprehensible that you had perhaps missed the DAS17 vs. xONEx references. Obviously not.
It's a bit like reading an English menu in a Japanese restaurant. They get it just about right - close enough so that you have some idea what you're ordering but you're always left wondering why they didn't have someone who's a native-language English speaker fix it up for them. It's the same with *files and the published rules on the oneworld website (and AA.com for that matter). Do they ever consider having people who actually buy the tickets (or otherwise use the information) critique what they publish to check whether (a) it's understandable and (b) unambiguously answers the questions that ticket buyers want or need to know (like "what's a stopover on this ticket?").
On the DAS17, it's a maximum of 8 segments and you're allowed 5 stopovers (no more than 1 at any one point). However, you can purchase additional stopovers.
Q. If you do that, can you then have 2 stopovers at the same point?
A. No. At least that's what I was told when I asked (which I had to do as it wasn't - at least to me - unambiguously clear).
.... and I guess I've now digressed sufficiently to take this topic waaay off course, for which my apologies to one and all ...