Did the Borneman study ever get finished? I've never come across the final analyzed data from it.
There's been a few different studies done the past few years that can sorted into two categories. There's the straight up chemical analysis type the the AWT study and the Inland Reef Study vs the studies that try and measure the effect of the salt mixes on actual marine life like Borneman's MARSH study and the S-15 report Shimek did. It's tough to relate any of this to what a given salt is actually going to do for you in the end though, there's many contradictions and such involved.
The easiest to digest analysis is probably the AWT study you can find here:
http://www.aquariumwatertesting.com/...lysis_0208.pdf