I stumbled across this site about a cruising cat race/rally week in the Greek islands
. I had never seen a relative ranking of speeds of various cruising cats. It appears that they rate a Lagoon
38 faster than a L410. I'm not sure how accurate that is so I would take this with a grain of salt
. You will have to look this up yourself as I haven't a clue how to make a link to it. CATAMARANS CUP INTERNATIONAL RATINGS - Catamaranscup.com
Maybe this thread can discuss ratings others have come across.