Well, I can confirm that SuperDuper! works faster than CarbonCopyCloner - although I did not benchmark it.
When I use Xbench that also checks disk speed I cannot see any difference between my both internal drives: the Western Digital and the Seagate. That's why I cannot explain that booting with the WD drive takes so much longer than with the Seagate drive. There must something wrong with the WD drive - but I don't know what.
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Enzo Ferrari (car) history