Climbers have been great about being honest, but a few seconds here and there is going to eventually lead to bad blood, acusations of mistakes and improprieties and disagreements that can't be resolved.
Below is the list from Han's site. It seems like most new records are minute+, sometimes the record gets broken by a team by a few seconds, but that team usually goes back out and breaks again by minute+ at least from what I remember. I'm sure Hans is not listing every little back and fourth in the record, but all the major breaks (the ones that last for more than a season) seem to be minute+. This will be like the marathon, where it eventually will be very difficult to break by a "substantial" amount.
1990 - 8:06 became the record then 6:40,(Steve Schneider and Hans Florine, then Dave Shultz and Peter Croft,- respectively)
1991 - 6:01 became the record then 4:48,(Andres Puhvel and Hans, then Dave and Peter, - respectively)
1992 - 4:22 became the record.,(Peter and Hans)
2001 - 3:59:35 became the record, then 3:57:27, then 3:24:20,(Timmy Oneil and Dean Potter, then Jim Herson and Hans, then Timmy and Dean again.)
2002 - 2:48:50 became the record, (Yuji Hirayama and Hans)
2003 - 11:50 became the record solo ascent (Hans Florine)
2007 - 2:48:35 became the record, then 2:45:45, (Alexander and Thomas Huber set and broke their own record)
2008 - 2:43:33 became the record, then 2:37:05, (Yuji and Hans)
current marathon record is 2:03:59
1)Will the marathon break 2:00? (it must right?) If so when? (the last 3mins took 20 years. Wow, talk about creeping along!)
2)Will the nose record ever be faster than the marathon?
3)Which will happen first the marathon under 2:00 or the nose faster than a marathon.
Super last question:
Is zodiac the only major elcap route to go sub 2:00?
Yes Silver. I talked to them on Monday after their climb. It was about 3 minutes behind their last attempt. Pretty darn good considering wetter pitches and an injured thumb. With the right conditions I think they will knock 5-10 minutes off.