Performer of the Meet
2:21.41 is an amazing time. Had Soni swum 2:21.41 at US Nationals it likely would have been seen as one of the swims of the meet. The fact she swam the time on the middle leg of the Mare Nostrum tour (where times generally haven't been overly impressive) makes this all the more special.
A look at the splits:-
PIERSE WR - 32.03 - 1:07.28 (35.25) - 1:43.42 (36.14) - 2:20.12 (36.70)
SONI ....2008 WR - 32.17 - 1:07.46 (35.29) - 1:43.70 (36.24) - 2:20.22 (36.52)
SONI - 2010 Barca - 32.02 - 1:07.85 (35.83) - 1:44.75 (36.90) - 2:21.41 (36.66)
SONI ...2010 Charl - 31.88 - 1:08.37 (36.49) - 1:44.58 (36.21) - 2:22.21 (37.63)
Soni had a faster first and last 50m split than Pierse's WR. Fully rested and tapered the middle 100 should improve. You can also see how she is changing her approach swim by swim. At the Charlotte Grand Prix her first and third 50s were faster than her swim in Barcelona but she was much quicker on the second and , crucially, final 50m.
As predicted in January, the 200m Breast WR is one of the most under threat marks right now and Soni is leading the charge to break the first WR of 2010.