2009 psych sheet at (click on results)
collegeswimming.com/.../
2010 psych sheet at
championships.coloradotime.com/.../m10_off_ps.pdf
After a quick run down there seems to be some pretty significant differences throughout. For example, here is a comparison of the 1650...
2009:
1 seed = 14:35
23 seed = 14.58
2010:
1 seed = 14:46
23 seed = 15:08