Hi,
With our utility you don't have to worry about relations, RI or anything, it just produces an export file which you send to the client run a compare & sync and it does the lot.
In testing on a 1GB database yesterday with a lot of structural, index & relation changes, it synced the database in 80 seconds when running a 3.2GHZ P4 with the conversion being done on drive C.

This is totally different from any conversion utility out there at present, the concept is totally left field.