I neglected to mention in my previous post that we're only a mile or so from the DM56 line, and that depending on weather, I'll try to set up on the DM56 / DM66 grid line for the VO52 pass at 31/1613Z. The AO27 pass at 31/1933Z should find us still in the DM66 grid but well away from the line. 73, Jim, ND9M / VQ9JC Bloomfield, NM / DM66