I side with The Terrier Man..
.,Sub 6m RIBs do IMO labour with twins.unless you have a specific reason for wanting twins??...
I'd certainly prefer to spend the money you'd save on two!..pluss considerable rigging costs..tanks..ect ect .On a really good low hours single!...and a load of Fuel!
The FS 140 Suzi does a good around job,(ask AJ and Whisper
..and without compromising balance and performance,as most of us know,it's not really about Top end BUT..keeping it Nimble responsive! ESPECIALY in the Rough Stuff.
GREAT Hulls they are though