I'm glad you asked this because I'm looking at the same decision. I love my Total Bedlam, and put the Full Swing Core inside an upgraded version of that cover and wham, unstoppable power.
However,
Hammer has produced a core concept that I really like in the Plague. They've done great modifications and for my style of release low RG's with high differentials work really well. The videos Hammer posted look impressive.
Anyone out there who's thrown both, or even just the Pure Physics, please let us know!