These rules can be confusing! I booked a OWE and decided insted of spending a quiet weekend in my hotel in HKG, I would fly upt o NRT on Satruday and back on Sunday, just to add the miles. Since I had a "stop" left in Asia, I thought it would be no problem. Well, it was not a problem but not for the reason I thought. Since I was staying less than 24 hours it didn't count! This according to AA. No if AA tarriffs agreed, I'll be set.
As a side note, the agent I spoke to said they are getting quite a few calls from BUD from people issuing/changing their tickets!
I guess we all appreciate a bargain.