Miler has posted a very helpful set or rules in 'OW 100K RULES FOR ALL AIRLINES'

I'm still struggling with a routing plan. My original intent was to use a OneWorld (5 continent, but go figure) RTW fare, make twelve segments by zigzagging between continents and pick up max points from two alliance partners. Given that CX require stopovers but AA do not, I thought that meant that I would run with six stopovers and six transits and all would be hunky-dory.

Unfortunately the OneWorld fare specifically requires that once you leave a continent you cannot go back (according to a previous post - God forbid that brochure material on this ever get to the public :-)), so that scuppers the simple West-East approach. However, it is possible to buy additional sectors, so I'm still waiting for the agent to come back to me.

The other approach would be to make up an RTW fare but add six small returns to adjacent continents. One suggestion in the above topic was Madrid to Tangiers, a short hop. A route map (I wish I had one) could show up short multifight hops with the potential to fly there and back in a day. These can give you two continents for the non-stopover carrier. A variation is that because the RTW continent difinition is different from the promotion defintion, there will be places that a zig-zag will work...

Neil