as some of you already evaluate the tour optimization and clustering features of xServer 2 I'd like to let you know that the binary searchgraph format of xServer 2 differs from the version 1 format. This means those who are used to searchgraphs in version 1 and now want to work with custom searchgraphs in xServer 2 have to create new search graphs. Please look at the xData module in xServer 2.
It's API enables you
- create
- list
- delete
Which also mean that there is no implicit creation of Graphs under those APIs - the handling of the Graphs is centralized in the same way as the DIMAs are now maintained by xDima and then used in xCluster and xTour.
Any by the way:
Another benefit of this new approach of Search Graph handling is the availability of some blacklist/whitelist parameters during the creation: you can define allowed or prohibited countries. This approach will reduce the sizes of the new graphs (compared to old graphs) and also enable you to create regional graphs based on a world map.

Best regards,
Bernd