Originally Posted by
G-BOAC
Sounds like that's the glitch rather than the bucket itself? On ex-EU Club/First fares, for example, feeder flights book into J but it's not then simply priced up by adding a notional full J cost sector by sector - they just book into the J inventory (as it's nearly always available) on the overall through-fare basis.
Maybe another example of BA not caring about the regions if this isn't fixed?

There were quite a few threads around that particular glitch at the time - not worth going over old ground explaining what we think was going on because it has been fixed. Just take it as a given that for quite a while, a discount CE LHR - CDG was costing £200 and a discount CE EDI-CDG was costing £500 - £600

because it was adding on the J domestic instead of one of the discounted fare buckets. The prospect of paying more for a 50 min, single class cabin flight with no food than for a similar length CE flight just filled me with delight...
And LiviLion, think it was your thread I found confirming that R is a domestic add-on as well.