No doubt there will be 'some' bonuses that require riding on unpaved roads. In my past rally experiences this has run the gamut from well improved dirt roads that are a non-issue, to goat paths that prevented (me at least) from reaching a bonus. Also, some RMs seem to be fine with miles of dirt while others try to include less. Is it possible for you to provide any guidance/expectations on this issue for the LDX?
The dirt road exposure for the LDX Rally will be minimal. Now, we can't attest for what your GPS might try to do to you, but you'll find few dirt roads.