Hello,
I recently installed FSG's World Mesh and also FSG's North American mesh. The North American mesh goes down to Guatemala/Honduras (some of the INEGI data for Mexico I presume). South of that, appears to be SRTM.
However, there appears to be a "gap" in coverage in eastern Honduras, east of a longitude line running from Trujillo on the Caribbean coast, south almost to Catacamas, and East to Puerto Lempira.
*is* there such a gap in the data? or have I missed installing a file somewhere?