Bruce Roberts Power Cats

[Teewee]

Hi Guys,
I'm getting a bit long in the tooth to be battling bloody big sails in the middle of the night and undertaking long distance voyages single handedly (i've been at it for over 30 years) so am negotiating the sale of my self-built 50 ft sailing cat and looking to replace it with a powered catamaran. I enjoyed building my cat and created a thing of both beauty and efficiency (with the help of designer Mike Waller) and would like to do it one more time. To this end I'm looking at Bruce Roberts designs for power cats. It appears that the Roberts 39 and 46 ft cats were designed by navel architect John Davis. Anybody have any experience to offer? Cheers