lets have a look at the results of last years ARC in the cruising division:
we are going to compare elapsed time of boats with similar length (the elapsed time is bold and shows days/hrs:min:sec - the type of boat is in brackets):
56 Shine (Grand Soleil 56) GBR 10/08:26:37
80.10 47 A (finished 3rd on elapsed time and 47th on corrected)
61 Miss Malin (Hanse 575) SWE 10/15:11:30
38.00 16 A
49 Tashatoo III (Gunfleet 58) GBR 10/16:56:46
73.50 27 B
123 Xirene (X-482) NED 11/14:48:22
24.67 6 D
64 Blue Ocean (Lagoon 560) POL 10/23:52:26
31.00 2 B (finished 2nd on elapsed time and on corrected)
57 Aurora (Catana 58) GBR 11/09:27:29
29.00 5 A
who was faster?
i left the gunboat 62 which won the multihull division and the top two on elapsed time - an oyster 885 and an oyster 655 - of the mono out, because these type boats were just out of proportion... the x 482 is just there to show you how fast well sailed smaller monos can go...
it just shows what another smart guy here already said: load a multi for cruising, sail it on a long ocean passage and their speed advantage comes down to naught!
cruising multis are good for bay hopping and... nothing else!