c. September to October?
Time control: 30min, +/- 1min per 50 rating points, up to 40min v 20min.
Source: Joe Klimczak's archive. A spreadsheet, last modified 12 October, contains the cross table below. The 2004 calendar describes the corresponding event that year as a 7-round Swiss; in 2005 it was evidently a different format, perhaps challenge-based.
Rtg NAME 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SCORE Perc GAMES 1916 Wolfgang 1 * 0 1 1 0 1 1 1 1 1 7.0 77.8% 9 1820 Andrew 2 1 * 1 0 1 = 0 1 1 5.5 68.8% 8 1816 Peter 3 0 * 1 0 1 1 1 1 5.0 71.4% 7 1809 Ross 4 1 0 * = 1 0 1 1 1 1 1 7.5 75.0% 10 1687 Martin 5 0 0 = * 0 0 1 1 1 = 1 1 6.0 54.5% 11 1662 Alex 6 1 0 1 * 0 1 3.0 60.0% 5 1662 Marc 7 1 = 0 1 1 * 0 0 1 1 1 6.5 65.0% 10 1496 Mike 8 0 0 * 0.0 0.0% 2 1445 John 9 0 1 0 * 0 0 0 0 1 1 3.0 33.3% 9 1420 Norbert 10 0 0 1 1 * 1 1 1 1 6.0 75.0% 8 1366 Joe 11 0 0 1 1 0 * 0 0 1 1 4.0 44.4% 9 1353 Colin 12 * 1186 David 13 0 0 0 0 1 0 1 * 0 2.0 25.0% 8 1084 Tony 14 0 0 = 1 0 1 0 1 * 1 4.5 50.0% 9 1000 Sean 15 0 0 0 0 0 0 0 0 1 0 * 1.0 10.0% 10 1000 Chris 16 0 0 0 0 0 0 * 0.0 0.0% 6