I think you have done a very good analysis of this vessel design yourself. It has long thin hulls for performance purposes, and those narrow transoms are there to help keep her bows from being overpowered. Of course we've learned over the years its not so much these broad sterns that push the bows down, but rather the tall sail plans themselves.
John Conser (great guy) showed up at the Annapolis boat show
with his 47' design s year or so after I brough the original 37' Louisiane into the USA. I always kidded him that he just wanted to build a larger Louisiane....after all we already competed with his 27' Warrior cat design and the 27' Stiletto we were representing
You have to remember in those days (1986-87) there were very few choices in larger 'production' multihulls....mostly the British Prouts, Catalacs, Catfisher, etc both john and I thought these 'stoddy old designs' were part of the problem in getting the mostly monohull
world to give a look at multihulls. We needed something sleeker, less boxy, lower windage, more sail area, more performance.
John developed the 47, I picked out the F/P Louisiane 37 from France
. Both of these designs are really more of a 'coastwise' type rather than open ocean. In order to keep that low profile, sleek look they were designed with low bridgedeck clearances,...certainly too low for open ocean use,...and too 'slender' to carry cruising loads. (BTW I do assume you are seeking some 'cruising attributes' in this new vessel you are considering?)
Unfortunately I never did get a chance to sail a Conser 47', so I am not a source of 'first hand onboard experience'. I did get a fair amount of time on the Louisiane I brought into the country....somewhat similar hull shape, but much less taller rig in comparison. One incident I might relay; I had a big light-air asymmetrical reacher built for her, and on one occasion when returning from the big Governor's Cup race
down the Chesapeake Bay
, we had some BIG gusty weather
coming upon us from the stern. It was bright daylight conditions so we could observe how this rapid moving weather
played havoc with the many monohulls that followed us, many of them flying their chutes. Peter Wormwood and myself made the calculated decision to leave that big reacher sail up and just square it off to the stern wind
. WOW, what a ride. It literally felt as though the boat levitated out of the water
by a half a foot or more and took off up the bay. (I've offered this real time experience to a few naysayers that claim that spinnakers and headsails can ONLY result in the bows being driven downward).
Peter Wormwood was the designer
of the Stiletto 30 catamarans. The second one built after the first production prototype was a custom one called Mirage. She carried a taller performance rig designed special for a client in New York
. The 30 was lenghtened 27 hulls, spread farther abeam, and with blister cabins extending to the inboard sides. Thus she was a little bit heavier than the 27, but with the same slender hulls and low freeboard. I raced on her on several occasions, and she was a treat to sail. If I remember correctly there were several other of these hi-perf 30's built and raced at the Stiletto Nationals down in Sarasota
. FL. I don't recall
any pitchpoles....maybe a couple of bow stuffings and a couple of overturnings in gusty bigger winds during all out racing
Back to the Conser 47'. I look at these two quotes by you;
1) "I'm Ex Tornado Olympic so I can tame Cats in a blow..."
2) "...alright is not a word I allow into my sailing requirements."
I would think the Conser is a good choice for you.
But if your interest is to take it offshore
on some cruising expeditions, I don't think it will handle the extra loading that well. For cruising performance I might make two other suggestions for you...but they are both larger boats:
1) Indigo--a beautiful 65 footer designed by Peter Wormwood for the original owner of the Mirage 30 footer
RunningTideYachts, Ltd. Photo Album of Design References Page 1
2) Wild Vanilla--the original Dudley Dix 55 footer was built pretty light by a gentleman (for his own use) who manages a lot of the Gunboat production cats She is pretty lt-weight, and as yet not over loaded. I think she would give surprising performance even with her relatively fat hulls and transoms.
DH 550 Plywood Cruising catamaran
...and a few shots of Stiletto 30, Mirage