I'm curious how a sandforce based SSD will perform in a fusion drive setup. The reason I ask is that, as we all know, sandforce chipset SSD's use compression on data before writing to flash, so their performance varies in connection with how compressable the data being written is. One consequence of this is that sandforce SSD's have terrible performance on systems that have FileVault 2 enabled- since the SSD controller can't tell what any of the data is none of it gets compressed, and the performance suffers as a result. Filevault 2 and fusion both create core storage logical volumes, so I'm wondering if that will be enough to trigger the problem or if the unencrypted fusion logical volume will allow the sandforce controller to do it's thing successfully . . . Has anyone built their own fusion drive with a sandforce SSD and run some benchmarks on it?