When you're over the 128SSD, how fast is the performance? I remember for audio work building computers with two drives. One fast drive has the OS one drive had audio samples and it sped performance up. Fusion is faster than regular HD as OS apps are there but is there any rough information out there for speed tests? IE SSD is xx% faster than fusion? Anyone done any comparisons? You'd need a computer with a pretty full fusion drive to do it though unless someone with a fusion drive here can comment how fast their system is compared to their old HD iMac?