FYI, if you start as a 767I FO and get a 767D bid later, they can still use you for international trips on reserve. I don't know how it would work for new hires (i.e. on probation), but the new domestic guy from international could have their INT qualification removed and only fly domestic trips. I have no idea if some gung-ho "weasel" Chief wouldn't think you are dedicated enough if requesting that. I know 2 of them that wouldn't care.

They also have periodic TDY's from domestic to international. With the INT Qual, on could get involuntary assigned for the bid month. Wouldn't be much difference on reserve for a DOM guy with a INT QUAL since he covers both sides anyways. They also use INT FO's for DOM on a regular basis.

Personally, after flying both sides as FO on reserve, I'd pick international for the variety. You'll be sucking wind at 4am on both sides at times. With movement, a line on the INT might come sooner and the trading ability is easier in the much larger bid status.

Hope this helps.